South Africa’s Health Ministry says the decision is based on a trial that found the vaccine offers limited protection for the ...

LONDON - Developers of the Oxford-AstraZeneca vaccine expect to have a modified jab to cope with the South Africa coronavirus variant by autumn, the vaccine’s lead researcher said Sunday. Health ...

The analysis included 14,019 cases of the Delta variant – 166 of whom were hospitalised – between April 12 and June 4.

LONDON (Reuters) - Data on the highly contagious COVID-19 variant identified in England do not suggest that vaccines will be less effective against it, while data on the South African variant should ...