Tag: South Africa
Johnson and Johnson vaccine has a 72% overall efficacy rate in the US and 64% in South Africa
The Johnson and Johnson vaccine had a 72 percent overall efficacy rate in the United States and 64 percent in South Africa, where a highly contagious variant emerged in the fall and is now driving most cases. More...
Pfizer says South African variant 501Y.V2 B.1.351 could reduce vaccine protection by up to 66%
A laboratory study suggests that the South African variant of the coronavirus N501Y.V2 More...
WHO: Recovered coronavirus patients have been reinfected with new virus strains
Preliminary reports from South Africa suggest people with prior Covid infection could be reinfected with a new, more infectious variant of the virus, the World Health Organization said. More...
Fauci: new coronavirus variant has caused reinfection in South Africa
Fauci: “When we were communicating with our many scientific and public health colleagues in South Africa, they were telling us over the phone ‘something strange is going on right now, we have people who were infected several months ago, who now with this new strain are getting reinfected, which is telling you that the immune response induced to the first infection wasn’t good enough to prevent the second infection”
https://edition.cnn.com/world/live-news/coronavirus-pandemic-vaccine-updates-01-30-21/index.html More...
Novavax vaccine works well except on N501Y.V2 South Africa variant
An early analysis in Britain found that the Novavax vaccine had an efficacy rate of nearly 90 percent. More...
SARS-CoV-2 501YV2 escapes neutralization by South African COVID-19 donor plasma
SARS-CoV-2 501Y.V2 escapes neutralization by South African COVID-19 donor plasma
“SARS-CoV-2 501Y.V2, More...
Moderna developing vaccine “booster shot” against 501YV2 variant
Moderna said its Covid-19 vaccine appeared to protect against emerging variants of the coronavirus in laboratory tests, but as a precaution it would test whether a booster shot improves immune responses and develop a new vaccine targeting the strain first identified in South Africa. More...
Study of convalescent sera from 44 South Africans infected in first wave, >90% showed reduced immunity & 48% had complete immune escape to 501Y.V2
Study of convalescent sera from 44 South Africans infected in first wave >90% showed reduced immunity and 48% had complete immune esape to 501Y.V2 More...
Covid-19 leaves trail of devastation at South African TVET colleges
A total of 23 staff members from SA’s 50 Technical and Vocational Education and Training (TVET) colleges, and four from community education colleges, died of Covid-related complications between December 15 and January 11. More...
Comprehensive mapping of mutations to the SARS-CoV-2 receptor-binding domain
Comprehensive mapping of mutations to the SARS-CoV-2 receptor-bindingdomain that affect recognition by polyclonal human serum antibodies. More...