Pfizer afirma que é hora de um reforço (terceira dose) na vacina contra a Covid; FDA e CDC dizem que ainda não.

Pfizer says it’s time for a Covid booster; FDA and CDC say not so fast – CNN

Ver também: CDC, FDA contradict Pfizer on COVID-19 vaccine booster – CIDRAP E Do I need a COVID-19 booster shot? 6 questions answered on how to stay protected – The Conversation E Pfizer suggests booster shots will be needed this year, but government officials say science will dictate the timing – The Washington Post E Pfizer to seek OK for 3rd vaccine dose; shots still protect – Associated Press E Citing the Delta Variant, Pfizer Will Pursue Booster Shots and a New Vaccine – The New York Times (poucos artigos gratuitos por mês) E Question open on need for COVID booster shot, data awaited, WHO says – Reuters