Autor(es): Jupp P G, McIntosh B M, Dos Santos I, DeMoor P

Resumo: The tick Ornithodoros savignyi - the mosquitoes Culex horridus, Culex quinquefasciatus, Aedes fulgens, Ae. furcifer - Mansonia africana were tested for infection rates - ability to transmit chikungunya virus. O. savignyi - Cx quinquefasciatus did not become infected - Cx quinquefasciatus failed to transmit the virus between vervet monkeys, Cercopithecus aethiops. Only one of 17 Cx horridus feeding on a blood-virus mixture became infected which included infection of the salivary gl-s. Ae. fulgens had a high infection rate - transmitted the virus between Mystromys albicaudatus rodents. Ae. furcifer - Ma. africana both transmitted virus between vervet monkeys: the 50% infection threshold - the transmission rate were less than 4.5 logs - 25% respectively for Ae. furcifer - c. 5.5 logs - 29% for Ma. africana. In a further test, Ae. furcifer transmitted virus from a monkey to hamsters at a transmission rate of 32%. Attempts to demonstrate transovarial transmission of the virus in Ae. aegypti - Ae. furcifer were unsuccessful. It is concluded that Ae. furcifer is fitted for its suspected role as epidemic vector - that Ma. africana could also act as an important epidemic vector in southern Africa.

Imprenta: Transactions of the Royal Society of Tropical Medicine and Hygiene, v. 75, n. 1, p. 15-19, 1981

Identificador do objeto digital: 10.1016/0035-9203(81)90005-5

Descritores: Chikungunya virus - Arbovirus ; Chikungunya virus - Pathogenesis ; Chikungunya virus - Viral infections ; Chikungunya Virus - Virus ; Chikungunya virus - Transmission ; Chikungunya virus - Epidemic

Data de publicação: 1981