The Olympics host city Tokyo, as well as Thailand and Malaysia, announced record Covid-19 infections on July 31, mostly driven by the highly transmissible Delta variant of the disease.

The world is at risk of losing hard-won gains in fighting Covid-19 as the highly transmissible Delta variant spreads, but WHO-approved vaccines remain effective, the World Health Organization said on July 30.

People who received the one-dose Johnson & Johnson Covid-19 vaccine may need a booster shot to fend off some of the worrisome coronavirus variants now spreading worldwide, a study suggests.

Scientists are working on a benchmark for Covid-19 vaccine efficacy that would allow drugmakers to conduct smaller, speedier human trials to get them to market and address a huge global vaccine shortage.

Tokyo Olympics organizers on July 18 reported the first Covid-19 cases among competitors residing in the athletes’ village, as its population swells ahead of the start of the pandemic-hit Games.

U.S. Surgeon General Vivek Murthy raised the alarm on July 15 over a growing wave of misinformation about Covid-19 and related vaccines that threatens efforts to quell the pandemic and save lives, urging technology companies and others to act.

The Olympics will take place without spectators in host city Tokyo, organizers said on July 8, as a resurgent coronavirus forced Japan to declare a state of emergency in the capital that will run throughout the Games.

Tokyo reported 716 new Covid-19 infections on July 3, the country’s highest in more than five weeks, as the nation considers extending pandemic restrictions in the capital just weeks before it is to host the Olympics.

If you think you have Covid-19, it might be best to stay away from your pets, says the author of a Dutch study that found a surprising number of dogs and cats may be getting infected.

The Euro 2020 soccer tournament was blamed for a surge in coronavirus cases as fans have flocked to stadiums, bars and spectator zones across Europe to watch the action while the pandemic still raged.