TWiV reviews rhinovirus complications in infants, a new influenza antiviral drug, Oropouche fever in Brazil, measles in Maryland and Ohio, effect of eliminating non-medical vaccine exemptions in NY, foot-and-mouth disease in Europe, severe primary and secondary dengue infections, and therapeutic mitigation of measles-like immune amnesia and exacerbated disease after prior respiratory virus infections.

TWiV explains why this season’s influenza vaccine is not protecting against mild to moderate disease caused by H3N2 virus, and that antibody-dependent entry of SARS-CoV-2 into monocytes is a major contributor to severe COVID-19.