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      Bed Bug Infestations in an Urban Environment

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          Abstract

          Bed bug infestations adversely affect health and quality of life, particularly among persons living in homeless shelters.

          Abstract

          Until recently, bed bugs have been considered uncommon in the industrialized world. This study determined the extent of reemerging bed bug infestations in homeless shelters and other locations in Toronto, Canada. Toronto Public Health documented complaints of bed bug infestations from 46 locations in 2003, most commonly apartments (63%), shelters (15%), and rooming houses (11%). Pest control operators in Toronto (N = 34) reported treating bed bug infestations at 847 locations in 2003, most commonly single-family dwellings (70%), apartments (18%), and shelters (8%). Bed bug infestations were reported at 20 (31%) of 65 homeless shelters. At 1 affected shelter, 4% of residents reported having bed bug bites. Bed bug infestations can have an adverse effect on health and quality of life in the general population, particularly among homeless persons living in shelters.

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          Illness after international travel.

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            Chronic Bartonella quintana bacteremia in homeless patients.

            Infection with Bartonella quintana can cause trench fever, endocarditis, bacillary angiomatosis, and peliosis. An outbreak of bacteremia due to B. quintana has been reported among homeless people in Seattle, and the seroprevalence is high among homeless people in both the United States and Europe. Body lice are known to be the vectors of B. quintana. We studied all the homeless people who presented in 1997 to the emergency departments of the University Hospital, Marseilles, France. Blood was collected for microimmunofluorescence testing for antibodies against B. quintana and for culture of the bacterium. Body lice were collected and analyzed by the polymerase chain reaction and sequencing of a portion of the citrate synthase gene of B. quintana. In 10 of 71 homeless patients (14 percent), blood cultures were positive for B. quintana, and 21 of the patients (30 percent) had high titers of antibody against the organism. A total of 17 patients (24 percent) had evidence of recent infection (bacteremia or seroconversion). Tests of lice from 3 of the 15 patients from whom they were collected were positive for B. quintana. The homeless people with B. quintana bacteremia were more likely to have been exposed to lice (P=0.002), were more likely to have headaches (P=0.03) and severe leg pain (P<0.001), and had lower platelet counts (P=0.006) than the homeless people who were seronegative for B. quintana and did not have bacteremia; 8 of the 10 patients with bacteremia were afebrile. Five patients had chronic bacteremia, as indicated by positive blood cultures over a period of several weeks. In an outbreak of urban trench fever among homeless people in Marseilles, B. quintana infections were associated with body lice in patients with nonspecific symptoms or no symptoms.
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              Bedbugs - back from the brink

               Clive Boase (2001)
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                Author and article information

                Journal
                Emerg Infect Dis
                Emerging Infect. Dis
                EID
                Emerging Infectious Diseases
                Centers for Disease Control and Prevention
                1080-6040
                1080-6059
                April 2005
                : 11
                : 4
                : 533-538
                Affiliations
                [* ]St. Michael's Hospital, Toronto, Ontario, Canada;
                []University of Toronto, Toronto, Ontario, Canada;
                []City of Toronto, Toronto, Ontario, Canada;
                [§ ]Toronto Public Health, Toronto, Ontario, Canada
                Author notes
                Address for correspondence: Stephen W. Hwang, Centre for Research on Inner City Health, St. Michael’s Hospital, 30 Bond St, Toronto, Ontario M5B 1W8, Canada; fax: 416-864-5485; email: hwangs@ 123456smh.toronto.on.ca
                Article
                04-1126
                10.3201/eid1104.041126
                3320350
                15829190
                Categories
                Research
                Research

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