Tokyo’s 2,848 COVID-19 infections on July 27 were the Olympic host city’s highest since the pandemic began, officials said, as media reported that authorities had asked hospitals to prepare more beds for patients as the Delta variant drives the surge.

BioSpace takes a look at some of the stories from the first day of the Alzheimer’s Association International Conference 2021 (AAIC).

Antibodies triggered by Sinovac Biotech’s Covid-19 vaccine decline below a key threshold from around six months after a second dose for most recipients, although a third shot could have a strong boosting effect, according to a lab study.

BioNTech SE on July 26 announced the launch of the company’s Malaria project, which aims to develop a well-tolerated and highly effective Malaria vaccine and implement sustainable vaccine supply solutions on the African continent.

Endo International Plc agreed to pay $35 million to settle a lawsuit by Tennessee local governments and on behalf of a child allegedly born addicted to painkillers accusing the drugmaker of fueling the opioid epidemic, the company announced July 22.

World Health Organization investigators have attempted to return to the Wuhan lab but are now being blocked by the Chinese government.

China rejected on July 22 a World Health Organization (WHO) plan for a second phase of an investigation into the origin of the coronavirus, which includes the hypothesis it could have escaped from a Chinese laboratory, a top health official said.

U.S. President Joe Biden said the Centers for Disease Control is likely to advise that kids who have not been vaccinated against Covid-19 should wear masks when they return from summer holidays to school in the fall.

As part of a nationwide response to the threat posed by the more contagious Delta coronavirus variant, New York City will require Covid-19 vaccinations or weekly tests for workers at city-run hospitals and clinics.

The Delta variant of the coronavirus is the cause of more than 80 percent of new U.S. Covid-19 cases, but the authorized vaccines remain more than 90 percent effective in preventing hospitalizations and deaths, said top U.S. infectious disease expert Anthony Fauci during a U.S. Senate hearing on July 20.