RT Book, Section A1 Ryan, Kenneth J. SR Print(0) ID 1148672485 T1 Arthropod-Borne and Other Zoonotic Viruses T2 Sherris Medical Microbiology, 7e YR 2017 FD 2017 PB McGraw-Hill Education PP New York, NY SN 9781259859809 LK accessmedicine.mhmedical.com/content.aspx?aid=1148672485 RD 2024/03/28 AB The zoonotic viruses comprise of more than 400 viral agents, one or more of which occur in most parts of the world. Members of the group have their ultimate reservoirs in insects or lower vertebrates. They are from diverse RNA virus families that primarily include the togaviruses, flaviviruses, bunyaviruses, reoviruses, arenaviruses, and filoviruses. The zoonotic viruses discussed here are divided into two groups: Arthropod-borne (arboviruses) and nonarthropod-borne zoonotic viruses. The arthropod-borne or arboviruses are transmitted to humans by infected blood-sucking insects, such as mosquitoes, ticks, and Phlebotomus flies (sandflies). The other zoonotic RNA viruses are generally believed to be transmitted by inhalation of infected animal excretions, by the conjunctival route, or occasionally by direct contact with infected animals (nonarthropod zoonotic viruses). Rabies virus, which is commonly transmitted by animal bites, is discussed separately in Chapter 17. Certain DNA viruses (poxviruses) are also transmissible from animals to humans, which are described in Chapter 11.