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Previous studies have demonstrated that Thogoto virus is transmitted from infected to uninfected ticks when co-feeding on uninfected guinea-pigs, even though the guinea-pigs do not develop detectable viraemia. The dynamics of this 'non-viraemic transmission' were investigated. The percentage of nymphs (recipients) that acquired virus increased from zero, when co-feeding with infected adults (donors) for 3 d, to 80% for a co-feeding period of 5 d. No statistically significant difference was detected when infected donors and uninfected recipients were separated physically up to a maximum distance of approximately 160 mm. These results indicate that the temporal, but not the spatial, relationship affects the number of recipient ticks that become infected.

Original publication




Journal article


Trans R Soc Trop Med Hyg

Publication Date





712 - 714


Animals, Arachnid Vectors, Bunyaviridae, Cell Line, Cricetinae, Feeding Behavior, Guinea Pigs, Nymph, Ticks, Vero Cells, Viremia