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Abstract
The US Food and Drug Administration approved a meningococcal conjugate A/C/Y/W-135
vaccine (MCV-4) for use in persons aged 11 to 55 years in January, 2005; licensure
for use in younger age groups is expected in 2 to 4 years.
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Division of Viral Hepatitis, National Center for Infectious Diseases, US Centers for
Disease Control and Prevention, 1600 Clifton Rd, MS G37, Atlanta, GA 30333, USA. cvs8@cdc.gov