| vp2 gene phylogenetic characterization of field isolates of african horsesickness virus serotype 7 circulating in south africa during the time of the 1999 african horsesickness outbreak in the western cape. | we present the first vp2-gene phylogenetic analysis of african horsesickness (ahs) viruses within a serotype. thirteen ahsv 7 isolates were obtained from cases that occurred in south africa during 1998-1999, and three were historical ahsv 7 isolates. the goals were to start a database of isolates of known location and time of isolation and to determine if we could identify the origin of an ahs outbreak in the surveillance area in the western cape. we prepared full-length cdna copies of the vp2-g ... | 2003 | 12782364 |