NewsDesk  @infectiousdiseasenews Since the introduction of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) in March 2020, South Africa has experienced three epidemic waves with the Beta...

NewsDesk  @infectiousdiseasenews Summary of findings: Vaccine effectiveness: The two-dose Pfizer-BioNTech vaccination provides 70% protection against severe complications of COVID-19 requiring hospitalization,...