New York Mayor Eric Adams is set to lift the city’s COVID-19 vaccine mandate for performers and professional athletes as early as this week, Politico reported on March 23, a rule that has come under growing criticism by local sports teams.

More than half of the first 21 brains donated to the Australian Sports Brain Bank by former athletes showed signs of chronic traumatic encephalopathy (CTE), a degenerative disease caused by repeated concussions, a study showed.

China detected three new cases of COVID-19 among Olympic Games related personnel on Feb. 13, the same number as a day earlier, the organizing committee of the Beijing 2022 Winter Games said on Feb. 14.

Daily COVID-19 infections among athletes and team officials at the Beijing Winter Olympics jumped to 19 on Jan. 28 from two a day earlier, as Games organizers warned of more cases in coming days.

Beijing Olympics organizers said on Jan. 23 they had confirmed 72 cases of COVID-19 among 2,586 Games-related personnel entering China from Jan. 4 to Jan. 22, with no cases among 171 athletes and team officials arriving in that period.

Covid-19 antibodies passed from infected mothers to their breastfeeding newborns provide more benefit to the baby than researchers expected to see, according to a report published on November 3 in JAMA Network Open. In other research, among people with impaired immune systems, some get less benefit than others from the mRNA Covid-19 vaccines while new data help clarify the differences and supports the need for extra shots.

Fans attending baseball, football and outdoor music events in Los Angeles County will be required to wear a mask starting on Aug. 20 regardless of their vaccination status, according to an order on Aug. 17 from the health department.

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.

Isolation and the absence of family and friends have taken a toll on athletes’ mental health at the Tokyo Olympics, with some struggling to cope with the challenges posed by the pandemic while carrying their country’s hopes on the global sports stage.

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.