Brazil researchers now say China’s Sinovac vaccine is 50% effective — lower than announced earlier  CNBCView Full Coverage on Google News

source https://news.google.com/__i/rss/rd/articles/CBMic2h0dHBzOi8vd3d3LmNuYmMuY29tLzIwMjEvMDEvMTMvY2hpbmFzLXNpbm92YWMtdmFjY2luZS1yZXBvcnRlZGx5LTUwcG9pbnQ0cGVyY2VudC1lZmZlY3RpdmUtaW4tYnJhemlsaWFuLXRyaWFsLmh0bWzSAXdodHRwczovL3d3dy5jbmJjLmNvbS9hbXAvMjAyMS8wMS8xMy9jaGluYXMtc2lub3ZhYy12YWNjaW5lLXJlcG9ydGVkbHktNTBwb2ludDRwZXJjZW50LWVmZmVjdGl2ZS1pbi1icmF6aWxpYW4tdHJpYWwuaHRtbA?oc=5