Leading U.S. infectious disease specialist Dr. Anthony Fauci said he foresees America achieving enough collective Covid-19 immunity through vaccinations to regain “some semblance of normality” by autumn 2021, despite early setbacks in the vaccine rollout.

The World Health Organization cautioned against major alarm over a new, highly infectious variant of the coronavirus that has emerged in Britain, saying this was a normal part of a pandemic’s evolution.

A Covid-19 vaccine being developed by CSL Ltd. and the University of Queensland was scrapped after numerous vaccine recipients reported receiving false positives on certain HIV tests, according to the Wall Street Journal.

AstraZeneca and Oxford University have more work to do to confirm whether their Covid-19 vaccine can be 90% effective, peer-reviewed data published in The Lancet showed, potentially slowing its eventual rollout in the fight against the pandemic.

Ten Covid-19 vaccines could be available by the middle of 2021 if they win regulatory approval, but their inventors need patent protection, the head of the global pharmaceutical industry group said.

Novavax Inc. is on track to begin a delayed U.S.-based, late-stage study of the company’s experimental coronavirus vaccine during November

Federal health regulators decided to allow the resumption of the U.S. trial of a leading Covid-19 vaccine candidate from AstraZeneca Plc and the University of Oxford, the Wall Street Journal reported, citing a person familiar with the matter and materials reviewed by it.

Johnson & Johnson temporarily paused the company’s Covid-19 vaccine candidate clinical trials due to an unexplained illness in a study participant, delaying one of the highest-profile efforts to contain the global pandemic.

The widely used BCG tuberculosis vaccine will be tested on frontline care workers in Britain for its effectiveness against Covid-19, researchers running the UK arm of a global trial said.

AstraZeneca Plc has begun enrolling adults for a U.S.-funded, 30,000-subject late-stage study of the company’s high-profile Covid-19 vaccine candidate.