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      Economic Shocks From the Novel Coronavirus Disease 2019 Pandemic for Anesthesiologists and Their Practices

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      , PhD, MBA * , , , PhD ,
      Anesthesia and Analgesia
      Lippincott Williams & Wilkins

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          Abstract

          On January 30, 2020, the World Health Organization (WHO) declared an outbreak of a novel coronavirus traced to a wet market in Wuhan, a city in the Hubei province of China, a “public health emergency of international concern.” 1 WHO classified the Coronavirus outbreak, commonly known as novel Coronavirus Disease 2019 (COVID-19), as a pandemic on March 11, 2020, 2 and to date, COVID-19 has had a profound impact on the United States health care system and economy. Anesthesiologists in the United States have responded in several important ways to the clinical surge in demand for inpatient medical and critical care services. Associated fundamental major impacts to anesthesiologists’ practices have included eliminating nonessential surgeries and other procedures, shifting efforts from perioperative to critical care services, and planning for a “new normal” after the first wave of the pandemic. The uncertainty and rapid pace of responses to mitigate clinical and socioeconomic impacts of the pandemic are causing added stress to the professional environment for anesthesiologists and their practices. The number and timing of COVID-19 cases varyby locality, which leads to additional uncertainty regarding timing of surges in health care utilization in each community as it responds to the pandemic. This article provides a reflection on the rapid set of fundamental changes in hospital and anesthesia services with a discussion of the responses that might have longer-term implications. The COVID-19 pandemic represents an “economic shock,” or an unexpected or unpredictable event, that impacts the ability of markets to function normally, leading to a broader economic impact. 3–5 Depending on the situation, economic shocks can affect supply, demand, or both. Examples of past disruptions to the overall United States health care system that have had broad economic impacts include (1) implementation of new payment policies such as Medicare prospective payment systems for inpatient care and bundled payments by some insurers, which led to different incentives regarding the resources used to treat hospitalized patients; (2) the “baby boom” after World War II that shaped many health care planning strategies to project the impact of a surge in the aging population on demand for medical and surgical services in relation to resource allocations, demographics, and preferences that differed from previous generations; and (3) the 1918 influenza virus, whichdemonstrated that controlling the pandemic was the key to economic recovery. 6 The recent COVID-19–related disruptions have happened both rapidly and globally, which has limited the ability of the overall health care system and economy to absorb the shocks. In this article, we use a health economics lens to focus on the various shocks to hospital and anesthesia services in response to the first wave of the COVID-19 pandemic. Current public health emergency efforts have centered around limiting exposures, reducing transmission, and “flattening the curve” so that the gap between health care capacity and patient care needs is smaller when the number of active cases peak. 7,8 Epidemiological data analyses forecast a peak in the number of new COVID-19 cases that varies widely by locality, with the large metropolitan areas of New York, Seattle, New Orleans, and Detroit experiencing earlier surges―prototypic experiences that may help other areas identify with more certainty how many diagnosed cases transition into requiring acute care hospitalizations, intensive care unit admissions, and often prolonged mechanical ventilation. 9–12 We discuss the immediate COVID-19 shocks, what might be expected in the near future, and likely future ebbs and flows of response to COVID-19. COVID-19 SHOCKS TO THE MARKET FOR ANESTHESIA SERVICES Anesthesia Workforce:Direct and Indirect Effects Although not universally implemented, nonessential surgical procedures were placed on hold as an initial response to prepare for an impending surge in COVID-19–related inpatient hospital stays and to mitigate potential spread of the virus within health care facilities. This sudden decrease in demand quickly and directly reduced the planned workload and related financial stability for many anesthesiology practices. However, the impact of and response to this demand shock can differ depending on the anesthesia practice size, financial structure, and types of services offered within the practice. Reductions in workforce of anesthesia providers and other staff whosupport practices are a standard, although feared, response to the short-term reduction in nonessential procedure workload. Small- to medium-sized private practice groups whose professional compensation is directly linked to payment for services may be forced to reduce staffing levels more quickly than larger practices and those with other payment arrangements. In a practice arrangement that supports physician anesthesiologists, certified registerednurse anesthetists (CRNAs), and anesthesiologist assistants, decisions regarding the number and type of anesthesia professionals who are furloughed (laid off) arechallenging and stressful for practice leaders. Planning for when or if they can be rehired is not feasible until the pandemic subsides. Anesthesia professionals employed by large academic medical centers and health systems may be relatively more protected from labor force reductions during the initial wave of COVID-19 response due to the overall diversity of services and financial structure of these organizations. The federal government has issued the Coronavirus Aid, Relief, and Economic Security (CARES) Act to provide financial support to small businesses and individuals who will be adversely impacted by the COVID-19 pandemic. 13 Signed on March 27, 2020, the CARES Act will offer financial support to practices facing furloughs and layoffs, and is expected to temper the direct impact of the short-term reduction in nonessential procedures on anesthesiologists and those they employ. Limitations on nonessential surgical procedures will temporarily limit opportunities for training new anesthesiologists because many residents will be unable to participate in as many procedures during the COVID-19 pandemic. There will be differences in impact depending on the various types of services delivered by attending anesthesiologists and their trainees. For example, pain medicine specialists with limited critical care or surgical experience may be wellpositioned to offer consultations using telemedicine technologies, while anesthesiologists who primarily work in ambulatory surgery settings will be more impacted by the sudden reduction and delays in resuming nonessential surgical procedures. Short-term demand for some essential procedures with some flexibility to preschedule, notably those related to normal labor and delivery, have increased temporarily in preparation for anticipated COVID-19 cases. However, the relative number of these proceduresis low in comparison to the overall workload reductions from canceling or delaying nonessential procedures. The increase in COVID-19 patients admitted to hospitals created a sudden surge in demand for anesthesiologists to support critical care. As the disease spreads and the numbers of cases increase, there is an immediate need for even more critical care services. This response will partly hinge on the availability of anesthesiologists for sedation, intubation, and monitoring of ventilator patients. Surge demand for delivering care to criticallyill patients will undoubtedly lead to increased risk to the mental health, including stress and burnout, because the role of trained anesthesiologists in caring for ventilator patients is central to supporting the pandemic response. 14 Caring for critically ill patients with COVID-19 also carries an added risk to the health of anesthesiology professionals and their families. The need to ensure the health and safety of all health care professionals has been a consistent message during the preparations and response to the pandemic. 15,16 Unfortunately, the ability to ensure that safety with adequate supplies of personal protective equipment (PPE) has been met with challenges in the supply chain that are not thus far being easily remedied. Availability of Anesthesia Inputs and Other Practice Resources Several resource inputs commonly used to provide anesthesia services have been rapidly depleted during the early wave of the COVID-19 pandemic. They are anticipated to remain in short supply as the pandemic grows. The impact of this shock is a reduction in the supply of anesthesia services because it reduces the ability of providers to deliver care using the same types of inputs. Lower availability of some inputs will have a more dramatic impact on anesthesia services than others, such as the conversions of anesthesia equipment for use as ventilators. In the shortterm, this equipment cannot be used to support perioperative care. In a quick response, 3-dimensional (3D) printers have been used to improvise on parts needed to supplement existing machines or repair equipment that was out of service. As state and federal government agencies along with industry respond to this debilitating shortage in the near and longterm, new innovations in ventilator technology are expected. Economic theory maintainsthat holding all else fixed, innovations will lead to lower costs and more efficiency. The immediate impact of ventilator shortages means that anesthesia services will lack an important resource. The response to increase the supply of ventilators during the current pandemic has come from nontraditional manufacturers, including firms in the automobile and vacuum cleaner industry, 17 which may lead to further innovations through the expanded diversity of design and engineering of new equipment. The influx of new ventilators will remain in the marketplace even after the pandemic subsides, and this equipment can continue to support anesthesia services as either reserve supply or to replace older ventilators. The increased demand for ventilators to support critically ill COVID-19 patients also increases the demand for and availability of anesthesia drugs and related supplies. Potential shortages of fentanyl, propofol, other sedatives, and muscle relaxants used for ventilator patients are a growing concern. Until this supply recovers, anesthesiologists supporting surgical services will likely increase the use of regional anesthesia, nerve blocks, or other methods that may require advanced skills and more intensive monitoring. Other supplies that are necessary for infection control, including face shields, gloves, sanitization supplies, and other PPE are scarce, but there have been consistent efforts to improvise, rapidly increase production, and identify priorities in allocating these supplies to address critical shortages. Health care entities and government authorities have been coordinating efforts in many states to identify needed resources that can be provided either through the federal strategic stockpile of health care supplies for emergencies or through purchases directly from domestic and international manufacturers. Beyond ventilators and supplies, physical locations of care have rapidly shifted to increase surge capacity for inpatient care. Impacts on anesthesia services due to changing the locus of care from prepandemic settings in hospitals or ambulatory surgical centers to other venues, which are being used to temporarily increase capacity, likely depend on where the temporary surge capacity is housed. Tents, convention centers, hotels, or other temporary facilities may be more disruptive to anesthesia service delivery compared to surge capacity efforts that expand or redeploy existing hospital units/floors or entire hospitals for use during this emergency. Based on their organizational and governance structures, integrated health care or hospital systems are anticipated to have resource allocation advantages over standalone hospitals. For example, NorthShore University HealthSystem in Evanston, IL, is a 5-hospital system that has designated one of its hospitals to treat only COVID-19 patients. 18 Even when more critical care beds become available and operations return to a new normal, sustained supply chain issues related to basic inputs may persist. Future Surge of Postponed Nonessential Surgeries and Procedures Service disruptions due to emergencies typically lead to pent-up demand, or an opposing positive shock, after the emergency subsides. Methods to track disruptions to scheduled care and workloads due to emergencies are available to gauge the severity and impact on individual practices and health care systems. 19,20 Delays in nonessential elective procedures will lead to an increased need for anesthesia services in surgical suites afterthe surge demand for COVID-19–related critical care declines and facilities are able to safely treat other patients. Shortages of other medical supplies, such as PPE, have led to increased production of these items, but may cause additional delays in a return to “normal” practice for anesthesiologists. The supply chain for these items is likely to be a short-term concern that recovers relatively quickly and in concert with a return to scheduling of elective surgical procedures. WAVES OF COVID-19 In the situation and scenarios above, we describe the initial shock to anesthesia services related to the first wave of the COVID-19 pandemic in the United States. Most models of the pandemic predict that COVID-19–related illnesses will occur in several waves, with the most disruptions to health care systems and overall economy during the first wave. Likely innovations in prevention, testing, diagnosis, and treatment will be used to more quickly inform best practices to support faster identification of outbreaks and to lessen the overall consequences to society in each progressive wave of COVID-19. Because there have already been many lessons learned in the initial wave of the pandemic, better preparation of the health care system, supply chain, and population for future outbreaks is also expected. Along with more readiness for subsequent waves of COVID-19, or other novel influenza-like illness-causing viruses, there should be less impact in the future on anesthesia services based on the current COVID-19 response. It is crucial to note the relatively flat growth curve in locations around the world (eg, China, South Korea, and New Zealand) where total quarantines and/or strict social isolation were quickly implemented versus the devastating exponential growth in locations where adequate social distancing was not achieved. Clinicians can anticipate that the impact on their practices will be in proportion to the policies enacted in their own location, overall adherence to those policies, population demographics, and other factors that are well beyond their immediate control. SUMMARY AND DISCUSSION Our assessment of the economic shocks suggests an optimistic outlook for anesthesiologists after the pandemic―a view that may be difficult to accept given the short-term challenges and perceptions of health care sector chaos. TheFigure summarizes our perceptions of the economic shocks, including the timing, magnitude, and duration from the first wave of the COVID-19 pandemic. Figure. Economic shocks caused by initial COVID-19 wave impacting anesthesia services in the United States (future waves or outbreaks of COVID-19 or other novel influenza-like illness-causing viruses would lead to similar shocks, but would be expected to have a more attenuated effect relative to the current COVID-19 pandemic and response). COVID-19 indicates Coronavirus Disease 2019. However, we note that “shocks” in economics are defined as interruptions to a system after which there is a recovery or return to a new normal of operations. With an overriding concern that the duration and severity of the current pandemic remain unknown, some anesthesiologists and practices are better positioned for the current economic shocks due to differences in training and practice environment. It is likely that, on the margins, some physicians, especially early careerists, may be attracted to organizational structures perceived to be more protected from demand shocks. However, we believe variability in practice type will still exist after the pandemic, and small private-practice groups need not face extinction from the “COVID-19 meteor.” Based on standard economic concepts, the investments made in most resources needed for the temporary response―surge capacity―can readily return to pre–COVID-19 norms. Changes in the health care workforce may take longer to recover. While the federal stimulus provided through the CARES Act will help mitigate the impact of temporary workforce reductions caused by stopping nonessential procedures, other policies may not match short-term changes in demand for anesthesia services. For example, on March 30, 2020, the US Centers for Medicare andMedicaid Services (CMS) issued regulatory waivers “to rapidly expand the health care workforce,” which included the temporary suspension of the requirements for physician supervision of CRNAs during the COVID-19 response. 21 Although wellintentioned, there seems to be no economic need to do so in light of the reduction in nonessential surgical and procedural care. While these waivers are expected to expire when the pandemic ends, policies that change scope of practice for health care practitioners could have much longer-lasting effects. Anesthesiology is a preeminent specialty, and the value of physician anesthesiologists has been clearly demonstrated during the early stages of the COVID-19 pandemic. The US surgeon general is an anesthesiologist. The vice president of the United States recognized the leadership roles of physician anesthesiologists and the American Society of Anesthesiologists. 22 Anesthesiology will continue to be viewed as a more versatile and desirable specialty option for medical students due to the ability to have training in perioperative, pain, and critical care medicine. The number of anesthesiology residency programs and residents continues to increase. In 2020, anesthesiology had a 99.4% match with 1883 anesthesiology candidates matched to 1894 anesthesiology available positions. 23 These are unprecedented times. The immediate priorities are to mitigate the spread of the current pandemic, ensure appropriate health care services capacity, and provide health care professionals with the resources needed to effectively and safely care for COVID-19 patients. Anesthesiologists have quickly demonstrated their value beyond the perioperative setting in caring for critically ill medical patients. DISCLOSURES Name: Thomas R. Miller, PhD, MBA. Contribution: This author helped develop the topic and its outline, and with drafting and review of the manuscript. Name: Tiffany A. Radcliff, PhD. Contribution: This author helped develop the topic and its outline, and with drafting and review of the manuscript. This manuscript was handled by: Thomas R. Vetter, MD, MPH.

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          An interactive web-based dashboard to track COVID-19 in real time

          In December, 2019, a local outbreak of pneumonia of initially unknown cause was detected in Wuhan (Hubei, China), and was quickly determined to be caused by a novel coronavirus, 1 namely severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The outbreak has since spread to every province of mainland China as well as 27 other countries and regions, with more than 70 000 confirmed cases as of Feb 17, 2020. 2 In response to this ongoing public health emergency, we developed an online interactive dashboard, hosted by the Center for Systems Science and Engineering (CSSE) at Johns Hopkins University, Baltimore, MD, USA, to visualise and track reported cases of coronavirus disease 2019 (COVID-19) in real time. The dashboard, first shared publicly on Jan 22, illustrates the location and number of confirmed COVID-19 cases, deaths, and recoveries for all affected countries. It was developed to provide researchers, public health authorities, and the general public with a user-friendly tool to track the outbreak as it unfolds. All data collected and displayed are made freely available, initially through Google Sheets and now through a GitHub repository, along with the feature layers of the dashboard, which are now included in the Esri Living Atlas. The dashboard reports cases at the province level in China; at the city level in the USA, Australia, and Canada; and at the country level otherwise. During Jan 22–31, all data collection and processing were done manually, and updates were typically done twice a day, morning and night (US Eastern Time). As the outbreak evolved, the manual reporting process became unsustainable; therefore, on Feb 1, we adopted a semi-automated living data stream strategy. Our primary data source is DXY, an online platform run by members of the Chinese medical community, which aggregates local media and government reports to provide cumulative totals of COVID-19 cases in near real time at the province level in China and at the country level otherwise. Every 15 min, the cumulative case counts are updated from DXY for all provinces in China and for other affected countries and regions. For countries and regions outside mainland China (including Hong Kong, Macau, and Taiwan), we found DXY cumulative case counts to frequently lag behind other sources; we therefore manually update these case numbers throughout the day when new cases are identified. To identify new cases, we monitor various Twitter feeds, online news services, and direct communication sent through the dashboard. Before manually updating the dashboard, we confirm the case numbers with regional and local health departments, including the respective centres for disease control and prevention (CDC) of China, Taiwan, and Europe, the Hong Kong Department of Health, the Macau Government, and WHO, as well as city-level and state-level health authorities. For city-level case reports in the USA, Australia, and Canada, which we began reporting on Feb 1, we rely on the US CDC, the government of Canada, the Australian Government Department of Health, and various state or territory health authorities. All manual updates (for countries and regions outside mainland China) are coordinated by a team at Johns Hopkins University. The case data reported on the dashboard aligns with the daily Chinese CDC 3 and WHO situation reports 2 for within and outside of mainland China, respectively (figure ). Furthermore, the dashboard is particularly effective at capturing the timing of the first reported case of COVID-19 in new countries or regions (appendix). With the exception of Australia, Hong Kong, and Italy, the CSSE at Johns Hopkins University has reported newly infected countries ahead of WHO, with Hong Kong and Italy reported within hours of the corresponding WHO situation report. Figure Comparison of COVID-19 case reporting from different sources Daily cumulative case numbers (starting Jan 22, 2020) reported by the Johns Hopkins University Center for Systems Science and Engineering (CSSE), WHO situation reports, and the Chinese Center for Disease Control and Prevention (Chinese CDC) for within (A) and outside (B) mainland China. Given the popularity and impact of the dashboard to date, we plan to continue hosting and managing the tool throughout the entirety of the COVID-19 outbreak and to build out its capabilities to establish a standing tool to monitor and report on future outbreaks. We believe our efforts are crucial to help inform modelling efforts and control measures during the earliest stages of the outbreak.
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            WHO Declares COVID-19 a Pandemic

            The World Health Organization (WHO) on March 11, 2020, has declared the novel coronavirus (COVID-19) outbreak a global pandemic (1). At a news briefing, WHO Director-General, Dr. Tedros Adhanom Ghebreyesus, noted that over the past 2 weeks, the number of cases outside China increased 13-fold and the number of countries with cases increased threefold. Further increases are expected. He said that the WHO is “deeply concerned both by the alarming levels of spread and severity and by the alarming levels of inaction,” and he called on countries to take action now to contain the virus. “We should double down,” he said. “We should be more aggressive.” Among the WHO’s current recommendations, people with mild respiratory symptoms should be encouraged to isolate themselves, and social distancing is emphasized and these recommendations apply even to countries with no reported cases (2). Separately, in JAMA, researchers report that SARS-CoV-2, the virus that causes COVID-19, was most often detected in respiratory samples from patients in China. However, live virus was also found in feces. They conclude: “Transmission of the virus by respiratory and extrarespiratory routes may help explain the rapid spread of disease.”(3). COVID-19 is a novel disease with an incompletely described clinical course, especially for children. In a recente report W. Liu et al described that the virus causing Covid-19 was detected early in the epidemic in 6 (1.6%) out of 366 children (≤16 years of age) hospitalized because of respiratory infections at Tongji Hospital, around Wuhan. All these six children had previously been completely healthy and their clinical characteristics at admission included high fever (>39°C) cough and vomiting (only in four). Four of the six patients had pneumonia, and only one required intensive care. All patients were treated with antiviral agents, antibiotic agents, and supportive therapies, and recovered after a median 7.5 days of hospitalization. (4). Risk factors for severe illness remain uncertain (although older age and comorbidity have emerged as likely important factors), the safety of supportive care strategies such as oxygen by high-flow nasal cannula and noninvasive ventilation are unclear, and the risk of mortality, even among critically ill patients, is uncertain. There are no proven effective specific treatment strategies, and the risk-benefit ratio for commonly used treatments such as corticosteroids is unclear (3,5). Septic shock and specific organ dysfunction such as acute kidney injury appear to occur in a significant proportion of patients with COVID-19–related critical illness and are associated with increasing mortality, with management recommendations following available evidence-based guidelines (3). Novel COVID-19 “can often present as a common cold-like illness,” wrote Roman Wöelfel et al. (6). They report data from a study concerning nine young- to middle-aged adults in Germany who developed COVID-19 after close contact with a known case. All had generally mild clinical courses; seven had upper respiratory tract disease, and two had limited involvement of the lower respiratory tract. Pharyngeal virus shedding was high during the first week of symptoms, peaking on day 4. Additionally, sputum viral shedding persisted after symptom resolution. The German researchers say the current case definition for COVID-19, which emphasizes lower respiratory tract disease, may need to be adjusted(6). But they considered only young and “normal” subjecta whereas the story is different in frail comorbid older patients, in whom COVID 19 may precipitate an insterstitial pneumonia, with severe respiratory failure and death (3). High level of attention should be paid to comorbidities in the treatment of COVID-19. In the literature, COVID-19 is characterised by the symptoms of viral pneumonia such as fever, fatigue, dry cough, and lymphopenia. Many of the older patients who become severely ill have evidence of underlying illness such as cardiovascular disease, liver disease, kidney disease, or malignant tumours. These patients often die of their original comorbidities. They die “with COVID”, but were extremely frail and we therefore need to accurately evaluate all original comorbidities. In addition to the risk of group transmission of an infectious disease, we should pay full attention to the treatment of the original comorbidities of the individual while treating pneumonia, especially in older patients with serious comorbid conditions and polipharmacy. Not only capable of causing pneumonia, COVID-19 may also cause damage to other organs such as the heart, the liver, and the kidneys, as well as to organ systems such as the blood and the immune system. Patients die of multiple organ failure, shock, acute respiratory distress syndrome, heart failure, arrhythmias, and renal failure (5,6). What we know about COVID 19? In December 2019, a cluster of severe pneumonia cases of unknown cause was reported in Wuhan, Hubei province, China. The initial cluster was epidemiologically linked to a seafood wholesale market in Wuhan, although many of the initial 41 cases were later reported to have no known exposure to the market (7). A novel strain of coronavirus belonging to the same family of viruses that cause severe acute respiratory syndrome (SARS) and Middle East respiratory syndrome (MERS), as well as the 4 human coronaviruses associated with the common cold, was subsequently isolated from lower respiratory tract samples of 4 cases on 7 January 2020. On 30 January 2020, the WHO declared that the SARS-CoV-2 outbreak constituted a Public Health Emergency of International Concern, and more than 80, 000 confirmed cases had been reported worldwide as of 28 February 2020 (8). On 31 January 2020, the U.S. Centers for Disease Control and Prevention announced that all citizens returning from Hubei province, China, would be subject to mandatory quarantine for up to 14 days. But from China COVID 19 arrived to many other countries. Rothe C et al reported a case of a 33-year-old otherwise healthy German businessman :she became ill with a sore throat, chills, and myalgias on January 24, 2020 (9). The following day, a fever of 39.1°C developed, along with a productive cough. By the evening of the next day, he started feeling better and went back to work on January 27. Before the onset of symptoms, he had attended meetings with a Chinese business partner at his company near Munich on January 20 and 21. The business partner, a Shanghai resident, had visited Germany between January 19 and 22. During her stay, she had been well with no signs or symptoms of infection but had become ill on her flight back to China, where she tested positive for 2019-nCoV on January 26. This case of 2019-nCoV infection was diagnosed in Germany and transmitted outside Asia. However, it is notable that the infection appears to have been transmitted during the incubation period of the index patient, in whom the illness was brief and nonspecific. The fact that asymptomatic persons are potential sources of 2019-nCoV infection may warrant a reassessment of transmission dynamics of the current outbreak (9). Our current understanding of the incubation period for COVID-19 is limited. An early analysis based on 88 confirmed cases in Chinese provinces outside Wuhan, using data on known travel to and from Wuhan to estimate the exposure interval, indicated a mean incubation period of 6.4 days (95% CI, 5.6 to 7.7 days), with a range of 2.1 to 11.1 days. Another analysis based on 158 confirmed cases outside Wuhan estimated a median incubation period of 5.0 days (CI, 4.4 to 5.6 days), with a range of 2 to 14 days. These estimates are generally consistent with estimates from 10 confirmed cases in China (mean incubation period, 5.2 days [CI, 4.1 to 7.0 days] and from clinical reports of a familial cluster of COVID-19 in which symptom onset occurred 3 to 6 days after assumed exposure in Wuhan (10-12). The incubation period can inform several important public health activities for infectious diseases, including active monitoring, surveillance, control, and modeling. Active monitoring requires potentially exposed persons to contact local health authorities to report their health status every day. Understanding the length of active monitoring needed to limit the risk for missing infections is necessary for health departments to effectively use resources. A recent paper provides additional evidence for a median incubation period for COVID-19 of approximately 5 days (13). Lauer et al suggest that 101 out of every 10 000 cases will develop symptoms after 14 days of active monitoring or quarantinen (13). Whether this rate is acceptable depends on the expected risk for infection in the population being monitored and considered judgment about the cost of missing cases. Combining these judgments with the estimates presented here can help public health officials to set rational and evidence-based COVID-19 control policies. Note that the proportion of mild cases detected has increased as surveillance and monitoring systems have been strengthened. The incubation period for these severe cases may differ from that of less severe or subclinical infections and is not typically an applicable measure for those with asymptomatic infections In conclusion, in a very short period health care systems and society have been severely challenged by yet another emerging virus. Preventing transmission and slowing the rate of new infections are the primary goals; however, the concern of COVID-19 causing critical illness and death is at the core of public anxiety. The critical care community has enormous experience in treating severe acute respiratory infections every year, often from uncertain causes. The care of severely ill patients, in particular older persons with COVID-19 must be grounded in this evidence base and, in parallel, ensure that learning from each patient could be of great importance to care all population,
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              Forecasting the novel coronavirus COVID-19

              What will be the global impact of the novel coronavirus (COVID-19)? Answering this question requires accurate forecasting the spread of confirmed cases as well as analysis of the number of deaths and recoveries. Forecasting, however, requires ample historical data. At the same time, no prediction is certain as the future rarely repeats itself in the same way as the past. Moreover, forecasts are influenced by the reliability of the data, vested interests, and what variables are being predicted. Also, psychological factors play a significant role in how people perceive and react to the danger from the disease and the fear that it may affect them personally. This paper introduces an objective approach to predicting the continuation of the COVID-19 using a simple, but powerful method to do so. Assuming that the data used is reliable and that the future will continue to follow the past pattern of the disease, our forecasts suggest a continuing increase in the confirmed COVID-19 cases with sizable associated uncertainty. The risks are far from symmetric as underestimating its spread like a pandemic and not doing enough to contain it is much more severe than overspending and being over careful when it will not be needed. This paper describes the timeline of a live forecasting exercise with massive potential implications for planning and decision making and provides objective forecasts for the confirmed cases of COVID-19.
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                Author and article information

                Journal
                Anesth Analg
                Anesth. Analg
                ANE
                Anesthesia and Analgesia
                Lippincott Williams & Wilkins
                0003-2999
                1526-7598
                20 April 2020
                15 April 2020
                : 10.1213/ANE.0000000000004882
                Affiliations
                From the [* ]American Society of Anesthesiologists, Schaumburg, Illinois
                []Department of Health Policy & Management, Texas A&M University School of Public Health, College Station, Texas
                []Veterans Emergency Management Evaluation Center, VA Greater Los Angeles Healthcare System, North Hills, California.
                Author notes
                Address correspondence to Thomas R. Miller, PhD, MBA, American Society of Anesthesiologists, 1061 American Ln, Schaumburg, IL 60173. Address e-mail to t.miller@ 123456asahq.org .
                Article
                00023
                10.1213/ANE.0000000000004882
                7173699
                32543803
                be8c1ea2-6c67-420b-9eb7-583f147e74fd
                Copyright © 2020 International Anesthesia Research Society

                This article is made available via the PMC Open Access Subset for unrestricted re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the COVID-19 pandemic or until permissions are revoked in writing. Upon expiration of these permissions, PMC is granted a perpetual license to make this article available via PMC and Europe PMC, consistent with existing copyright protections.

                History
                : 12 April 2020
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                The Open Mind
                The Open Mind

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