Inactivation of a turkey herpesvirus by ultra-violet light.
The sensitivity to inactivation by ultraviolet light of the PB 1 strain of herpesvirus of turkeys (HVT) was determined and compared with the relative sensitivity of pseudo-rabies virus (PRV), another member of the herpesvirus group. HVT (PB1) was 6.3 times more resistant than PRV when assayed in chick embryo fibroblasts. The survival curve of HVT (strain PB1) had one component and the survival curve of PRV had two components. Survival curves of HVT and PRV in chick embryo fibroblasts treated with caffeine and in duck embryo fibroblasts are also presented. Evidence was obtained for host cell reactivation of HVT and PRV in chick embryo fibroblasts. Multiplicity reactivation could be clearly demonstrated for UV-irradiated PRV, but not for HVT.
D'Aprile
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PN
Istituto Zooprofilattico Sperimentale delle Venezie, Padova, Italy.
Petek
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M