Enlarge / Vials of undiluted Pfizer COVID-19 vaccine. (credit: Getty | BRENDAN SMIALOWSKI ) Vaccine makers are pushing back when omicron-specific COVID-19 vaccines could be ready for use. The shots were initially expected in March. Delays in the vaccines’ development come as cases of omicron have been dropping rapidly, and several animal studies have suggested […]
Enlarge / Adenoviruses seen via transmission electron microscopy. (credit: Getty | BSIP) Out of an abundance of caution, US officials on Tuesday recommended pausing use of Johnson & Johnson’s COVID-19 vaccine. Officials linked the vaccine to six peculiar illnesses in which people developed life-threatening blood clots in combination with low levels of blood platelets, the […]