TWiV reviews whats going on with measles and its global resurgence, poliovirus found in Gaza, vaccine hesitancy in a community, 14 year old dies of Nipah, selection of SARS-CoV-2 viruses resistant to nirmatrelvir, and protective but non-neutralizing antibodies from survivors of Crimean-Congo hemorrhagic fever virus.

TWiV reviews a leaked CDC document on virulence and spread of the delta variant, and how anti-alphavirus antibodies that do not neutralize infection can nevertheless protect mice from disease.