Categories Articles AstraZeneca Vaccine Being Tweaked to Fight South Africa Variant Post author By crystalg Post date February 7, 2021 TIME Tags Africa, AstraZeneca, Being, Fight, South, Tweaked, Vaccine, Variant’ ← More contagious coronavirus variant from UK is doubling every 10 days in US, new study warns → CBS All Access app had technical difficulties at the start of the Super Bowl