query: How many species of Lentivirus are there?
passage: Lentivirus
Five serogroups of lentiviruses are recognized, reflecting the vertebrate hosts with which they are associated (primates, sheep and goats, horses, domestic cats, and cattle).[3] The primate lentiviruses are distinguished by the use of CD4 protein as a receptor and the absence of dUTPase.[4] Some groups have cross-reactive gag antigens (e.g., the ovine, caprine, and feline lentiviruses). Antibodies to gag antigens in lions and other large felines indicate the existence of another yet to be identified virus related to feline lentivirus and the ovine/caprine lentiviruses.
passage: Quaranjavirus
Quaranjavirus is a new genus of enveloped RNA viruses, one of seven genera in the virus family "Orthomyxoviridae". The genome is single-stranded, negative-sense segmented RNA, generally with six segments. "Quaranfil virus" is the type species, and the genus also contains the species "Johnston Atoll virus"; it has been proposed to contain species or strains including Cygnet River virus, Lake Chad virus, Tyulek virus and Wellfleet Bay virus. Quaranjaviruses predominantly infect arthropods and birds; as of March 2015, "Quaranfil virus" is the only member of the genus to have been shown to infect humans. The "Quaranfil" and "Johnston Atoll" viruses are transmitted between vertebrates by ticks, resembling members of "Thogotovirus", another genus of "Orthomyxoviridae".