Infection rates of Aedes triseriatus following ingestion of La Crosse virus by the larvae.
Infection rates ranged from 0-2.1% in adults of Aedes triseriaus reared from groups of larvae that had ingested La Crosse (LAC) virus (Clifornia encephalitis group) at dosages of 7.0-8.3 log 10 SMICLD50/ml. Females form orally infected larvae transmitted the virus to suckling mice. Larvae that devoured carcasses of transovarially infected larvae containing 3.0 log 10 SMICLD 50/ml failed to become infected. Ingestion by larvae of infected carcasses appears, therefore, to be unimportant as a method of horizontal amplification of LAC virus.
D000330:Aedes / Q000382:microbiology*; D000818:Animals; D002141:Encephalitis Virus, California / Q000254:growth & development*; D004668:Encephalitis Viruses / Q000254:growth & development*; D004670:Encephalitis, California / Q000635:transmission; D005260:Female; D006863:Hydrogen-Ion Concentration; D051379:Mice; D013696:Temperature; D014871:Water Microbiology