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.

The University of Oxford suggested that the end of 2020 is possible for the availability of a Covid-19 vaccine candidate being developed with AstraZeneca, but expressed caution about the timeline.

The World Health Organization reported a record increase in global coronavirus cases for the second day in a row, with the total rising by 259,848 in 24 hours.

The World Health Organization reported a record increase in global coronavirus cases on Sunday, with the total rising by 230,370 in 24 hours.

The United States has the potential to become the new epicenter of the coronavirus pandemic due to a “very large acceleration” in infections there, the World Health Organization said.

The new anti-tuberculosis drug combination of bedaquiline, pretomanid and linezolid cures 90 percent of people with deadly drug-resistant TB if given for six months, researchers report in The New England Journal of Medicine.

The National Institutes of Health (NIH) ceased administration of an investigational HIV vaccine after interim data revealed that the treatment was not working in preventing the virus.