Amplification of arbovirus transmission by mosquito intradermal probing and interrupted feeding.
Probing is the crucial phase for the successful intake of the blood by a mosquito female, saliva being ejected during the intradermal probing period. When Tahyna virus (California group, family Bunyaviridae) carrying and transmitting Aedes aegypti mosquito was allowed to feed on 3 suckling white mice for 4 hr, 66.7% of the 162 exposed mice became infected. When one infected mosquito was put in contact with 5 mice, 53.6% of the 250 exposed mice became infected. Multiple transmission of the virus to the available hosts during completion of one blood meal by a single mosquito has been demonstrated.
Labuda
M
M
Institute of Virology, Slovak Academy of Sciences, Bratislava.
Kozuch
O
O
D000330:Aedes / Q000382:microbiology* / Q000502:physiology; D000818:Animals; D001102:Arbovirus Infections / Q000635:transmission*; D004195:Disease Models, Animal; D002141:Encephalitis Virus, California; D005247:Feeding Behavior; D005260:Female; D006790:Host-Parasite Interactions; D007303:Insect Vectors; D051379:Mice; D012463:Saliva / Q000382:microbiology