Laboratory strains of Culex pipiens molestus Forskal and Culex tritaeniorhynchus Giles from northern Taiwan were compared for their susceptibility to the Sanhsia MQ1–2 (SH) strain of Japanese encephalitis (JE) virus isolated from Taiwan. After feeding on a sweetened blood–virus mixture, viral titers in Cx. p. molestus during the 14-d incubation period ranged from a minimum of 2.9 log10PFU (plaque forming units) per mosquito on day 3 after ingestion to a maximum of 4.65 log10PFU at day 8 and in Cx. tritaeniorhynchus from 2.6 on day 10–5.18 log10PFUper mosquito on day 13. Although virus titer in Cx. p. molestus was lower than in Cx. tritaeniorhynchus at the end of the experiment, this difference was not statistically significant. The median infective dose (ID50) for Cx. p. molestus was 2.83 log10PFU and for Cx. tritaeniorhynchus was 1.02 log10PFU per mosquito, and this difference also was not significant. There also was no significant difference between the median infective dose for transmission (TID50) per mosquito for Cx. p. molestus (5.34 log10PFU) and Cx. tritaeniorhynchus (4.59 log10PFU). We concluded that Cx. p. molestus is an effective laboratory vector of JE virus.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.
Vol. 37 • No. 5