| a sudden epidemic of hiv type 1 among injecting drug users in the former soviet union: identification of subtype a, subtype b, and novel gaga/envb recombinants. | the former soviet union republics have experienced an explosive human immunodeficiency virus type 1 (hiv-1) epidemic among injecting drug users (idus), consisting mainly of subtype a viruses originated from a point source (bobkov et al.: aids res hum retroviruses 1997;13:1195-1201). to determine whether new hiv-1 subtypes have entered the idu population, 46 samples derived from idus in russia (n = 39) and the ukraine (n = 7) were genotyped by heteroduplex mobility assay (hma). it was shown that ... | 1998 | 9618078 |