Abstract
Four strains of tick-borne encephalitis virus transfected by DNA from chronically infected cells were studied. The viruses induced cytopathic effect in a line of swine embryo kidney cells and inapparent infection in suckling mice. Treatment of the cells with DEAE-dextran increased infectious titres and cytopathic action of the viruses. One substrain revealed an extreme degree of attenuation and showed cytopathic activity only in the presence of DEAE-dextran.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Paper version not known
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
