-
15-03-2022T cell immunity to SARS-CoV-2 following natural infection and vaccination
Conventional T cells are phenotypically and functionally diverse and have a critical role in long-lasting protection conferred by immune memory. CD8+ cytotoxic T lymphocytes (CTL) in the respiratory tract blunt virus replication by directly killing infected cells and secrete...
-
21-12-2021COVID-19. Delta Variant
The Delta variant causes more infections and spreads faster than early forms of SARS-CoV-2, the virus that causes COVID-19 The Delta variant is more contagious. The Delta variant is highly contagious, more than 2x as contagious as previous variants. Some data suggest the Delta...
-
21-12-2021COVID-19. Omicron Variant
On November 24, 2021, South Africa reported the identification of a new SARS-CoV-2 variant, B.1.1.529, to the World Health Organization (WHO). B.1.1.529 was first detected in specimens collected on November 11, 2021, in Botswana and on November 14, 2021, in South Africa. On...