Coronavirus deaths could more than double to two million without collective action against the pandemic, the World Health Organization has warned, as Australia’s prime minister urged any nation that develops a vaccine to share it with the world.

Florida Governor Ron DeSantis Friday scrapped COVID-19 restrictions on bars and restaurants the same day the US state saw 122 deaths topping 14,000 dead.

California has begun to see concerning upticks in coronavirus data after a sustained period of decline, the state’s top health official said Friday, urging people to renew efforts to prevent spread.

A new study implicates 160 genes in brain shrinkage seen on MRIs of 45,000 healthy adults. The shrinkage is in the cortex, the dimply outer layer of the brain that gives rise to thinking, awareness and action, and largely consists of gray matter.

As the COVID-19 pandemic swept around the world early this year, shortages of protective equipment such as N95 masks left healthcare workers little choice but to reuse the masks they had—increasing the risk of infection for both them and their patients.