Axios Alerts: Johnson & Johnson says its vaccine is 66% effective against moderate to severe COVID

Alerts   Axios    Johnson & Johnson says one-shot vaccine is 66% effective against moderate to severe COVID Between the lines: The single-shot vaccine was only 57% effective in South Africa, where a more contagious coronavirus variant has been spreading.   Download the Axios App Follow Axios on Social Media Contact Axios, 3100 Clarendon B‌lvd, Suite 1300, Arlington VA 22201   You received this email because you signed up for news alerts from Axios. Change your preferences or unsubscribe here.