
Why the coronavirus variant in South Africa has put a damper on vaccines – and why many are still hopeful
CNNCNN — A roller coaster of research has stoked concerns that a coronavirus variant first linked to South Africa could be resistant to vaccines and raise the bar for herd immunity. On Sunday, health officials in South Africa announced a temporary hold on the rollout of the Oxford/AstraZeneca vaccine after a study suggested it offered “minimal protection” against mild-to-moderate Covid-19 due to the variant, the University of Oxford said. “Across all geographies, across all variants, we see 85% protection” against severe disease, Dr. Mathai Mammen, the company’s global head of research and development, previously told CNN. Oxford’s announcement this week said that neutralization activity against B.1.351 was “substantially reduced when compared with the original strain of the coronavirus.” Similar results have been seen, albeit to varying degrees, across “almost every one of the vaccines that have been studied against this variant in different ways, either in the laboratory or in clinical studies,” Dr. Salim Abdool Karim, the chair of the South African government’s coronavirus advisory panel, previously told CNN. “When you look at the studies done in labs, there was less neutralizing activity against the South Africa strain,” vaccine expert Dr. Paul Offit told CNN after Novavax and Johnson & Johnson shared their results.
History of this topic

AstraZeneca pulls its COVID-19 vaccine from the European market
Associated Press
AstraZeneca removes its Covid vaccine worldwide after rare and dangerous side effect linked to 80 deaths in Britain was admitted in court papers
Daily Mail
AstraZeneca reaffirms Covid vaccine safety amid rare side effect concerns
India TV News
Africa's COVID vaccine production line in jeopardy
The Hindu
New oral Covid vaccine can decrease severity, transmission: Study
India Today
New plant-based Covid vaccine 70% effective against variants: Study
India Today
AstraZeneca Covid Booster Shot Effective Against Severe Disease, UK Study Finds
News 18
Indian scientists claim to have designed vaccine against all variants of coronavirus
India TV News
New COVID studies show promise for the Johnson & Johnson vaccine booster
NPR
COVID: Study suggests AstraZeneca booster works against Omicron
Al Jazeera
South Africa to give J&J vaccines to other African nations
Associated Press
Pfizer Covid vaccine less effective in South Africa after Omicron cases: Study
India Today
UK scientists trial first needle-free air-powered COVID-19 vaccine
Live Mint
Pfizer jab protects against hospitalisation with Omicron: Study
Al Jazeera
December 13 2021: Omicron variant news
CNN
South Africa approves Pfizer vaccine booster amid COVID wave
Associated Press
South African Regulator Approves Pfizer Booster Vaccine After Surge In Covid Cases
News 18
Mix and matching some COVID vaccines gives high immunity: Study
Al Jazeera
INSACOG Denies Suggesting Covid-19 Booster Shots, Says Vaccine Decision Not Its Mandate
News 18
Trigger of rare blood clots linked with AstraZeneca Covid vaccine found
Deccan Chronicle
December 2, 2021 Omicron coronavirus variant news
CNN
December 2, 2021 Omicron coronavirus variant news
CNN
Covishield: Oxford-Astrazeneca vaccine remained effective even during India’s brutal second wave
The Independent
Travel bans over new 'Omicron' coronavirus variant are unjustified, says South Africa
India Today
Protection offered by booster shot beats ‘natural immunity,’ study suggests
LA Times
Explained | What is the new coronavirus variant in South Africa?
The Hindu
Frequent mutations, rapid spread: All about the new coronavirus variant in South Africa
Hindustan Times
The Race Is On to Develop a Vaccine Against Every Coronavirus
Wired
Covid-19 vaccines may protect against other coronaviruses: Study
India Today
Mix-and-match vaccines highly effective against COVID-19: Lancet study
Deccan Chronicle
US coronavirus: With more Covid-19 booster shots on the horizon, one expert says mixing and matching doses may be an effective approach
CNN
Pfizer/BioNTech COVID-19 vaccine effectiveness drops after 6 months: Study
Live Mint
AstraZeneca Covid-19 vaccine shows 74% efficacy in large US trial
India Today
For People Who Got The J&J Vaccine, Some Doctors Are Advising Boosters ASAP
NPR
AstraZeneca picks up new vaccine technology originally intended to target Covid
The Independent
Two dose version of Johnson & Johnson shot 94% effective against Covid-19, study finds
CNN
South Africa vaccinates children in test of China’s Sinovac jab
Al Jazeera
South African scientists monitoring new coronavirus variant
Al Jazeera
Pfizer, AstraZeneca Covid vaccines less effective against Delta variant: Oxford-led study
India TV News
COVID vaccine efficacy wanes, but jabs offer protection: Study
Al Jazeera
Pfizer, AstraZeneca Covid vaccines less effective against Delta variant: Study
Deccan Chronicle
Johnson & Johnson says talks with India on Covid vaccine Janssen still going on
Hindustan Times
West African health officials race to vaccinate amid spikes
The Independent
West African health officials race to vaccinate amid spikes
Associated Press
Vaccine inequalty: African countries to receive six million Johnson and Johnson vaccines
CNN
South African firm to make Pfizer vaccine, first in Africa
Deccan Chronicle
Two jabs of Pfizer, AstraZeneca vaccines effective against Delta variant: Study
India Today
South African firm to make Pfizer vaccine, first in Africa
Associated Press
Pfizer Covid vaccine induces \'good\' immune response against coronavirus variants
Deccan Chronicle
South Africa's new coronavirus cases surge to record levels
The IndependentDiscover Related














































