The ChAdOx1 COVID-19 vaccine jointly developed between AstraZeneca and the University of Oxford is not effective against the B.1.351 variant first identified in South Africa, according to a recent study published in NEJM. In a five-month study involving HIV-negative adults, 23 of 717 placebo recipients developed mild-to-moderate COVID-19 while 19 of 750 vaccine recipients did. Based […]
South Africa
South Africa pauses rollout of AstraZeneca COVID-19 vaccine
South Africa has scrapped its plans to vaccinate a portion of its population with the COVID-19 vaccine from Oxford University and AstraZeneca (LON:AZN) after a small study showed it was ineffective against a variant widely circulating there. In the interim, South Africa will rely on vaccines from Johnson & Johnson (NYSE:JNJ) and Pfizer (NYSE:PFE). Researchers at Oxford University […]