| experimental vector incompetence of a soft tick, ornithodoros sonrai (acari: argasidae), for crimean-congo hemorrhagic fever virus. | adults and nymphs of a soft tick, ornithodoros sonrai sautet & witkowski, were allowed to feed on suckling mice that had been experimentally infected with crimean-congo hemorrhagic fever (cchf) virus (ibar 10200 strain). the mean viral titer of mouse blood at the time of tick feeding was 10(3.2) plaque-forming units (pfu) per ml. samples of ticks were assayed on 12 occasions between days 0 and 31 after the viremic blood meal. mean cchf viral titers were 10(2.1) pfu per tick immediately after the ... | 1993 | 8459431 |