07.23.21
Two-dose regimen of mRNA vaccines provides protection against Alpha and Beta variants in France
Over the past six months, the World Health Organization has categorized four SARS-CoV-2 variants as being "of concern" because they are more transmissible or may escape the immune response. They have been termed the Alpha, Beta, Gamma, and Delta variants. Scientists from the Institut Pasteur, in collaboration with the French National Health Insurance Fund (CNAM),