Viral Clocks: Why Some Infections Hurry and Others Linger
A cell gets infected by a virus, and an invisible timer starts ticking inside. At first, the virus seems to vanish: you can't find it; it's gathering resources. This latent period (the time from virus entry to the appearance of new particles) is unique to each strain. For Bunyamwera virus, it turned out to be noticeably longer than for Batai virus.