Article
Genetic variation among isolates of western equine encephalomyelitis virus from California.
The American journal of tropical medicine and hygiene - 1 Apr 1999
Kramer L D, Fallah H M
Abstract excerpt
The mechanism for long-term maintenance of western equine encephalomyelitis (WEE) virus in California was investigated by studying genetic variation in the E2 portion of the genome of 55 strains of WEE virus isolated since 1938 from different locations in California. Four major lineages were evident: virus strains isolated from the Central Valley since 1993 and Los Angeles in 1991 formed lineage A; southern...
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