Y73 sarcoma virus, (Y73SV), Retroviridae, 374

Yaba monkey tumor virus, (YMTV), Poxviridae, 150

Yaba-1 virus, (Y1V), Bunyaviridae, 607

Yaba-7 virus, (Y7V), Bunyaviridae, 605

Yacaaba virus, (YACV), Bunyaviridae, 620

Yam mosaic virus, (YMV), Potyviridae, 710, 722

Yaounde virus, (YAOV), Flaviviridae, 866

Yaquina Head virus, (YHV), Reoviridae, 418

Yata virus, (YATAV), Rhabdoviridae, 580

Yellow fever virus, (YFV), Flaviviridae, 860-877

Yellowtail ascites virus, (YTAV), Birnaviridae, 486, 489

Yogue virus, (YOGV), Bunyaviridae, 619

Yoka poxvirus, (YKV), Poxviridae, 154

Yokose virus, (YOKV), Flaviviridae, 866

Youcai mosaic virus, (YoMV), Tobamovirus, 893

Yucca bacilliform virus, (YBV), Caulimoviridae, 344

Yug Bogdanovac virus, (YBV), Rhabdoviridae, 569