| the multiplication of dugbe virus in the ixodid tick, hyalomma rufipes koch, after experimental infection. | nymphs and adults of h. rufipes were inoculated intracoelomically with a dugbe virus concentration containing 1.5 ld50/0.02 ml. the virus multiplied to a peak titre of 9.3 log10 +/- 0.03 in nymphs and 4.4 log10 +/- 0.02 in the unfed adults. virus infection persisted during metamorphosis and was passed on to the adults. a blood meal significantly increased the titre of virus in the adults at a probability less than 0.001. also the tire in the engorged females was significantly higher than that in ... | 1979 | 538818 |