Article
Effect of Vaccine Use in the Evolution of Mexican Lineage H5N2 Avian Influenza Virus
14 Jul 2004
Abstract excerpt
An outbreak of avian influenza (AI) caused by a low-pathogenic H5N2 type A influenza virus began in Mexico in 1993 and several highly pathogenic strains of the virus emerged in 1994-1995. The highly pathogenic virus has not been reported since 1996, but the low-pathogenic virus remains endemic in Mexico and has spread to two adjacent countries, Guatemala and El Salvador. Measures implemented to control the...
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