@WSJ 4 years ago The South African coronavirus variant may spread faster and reduce the efficacy of vaccines, and at least 22 other countries have found the variant on.wsj.com
@WSJ 4 years ago Researchers have warned that the South African variant may spread faster and reduce the efficacy of Covid-19 vaccines. At least 22 other countries have found the variant in their tests. Here is what we know. on.wsj.com