Social distancing may be a novel concept today, but the first enforced quarantine was some 4,000 years ago, according to tablets excavated from the ancient realm of Mari, in the northeast of what is now Syria.  

What percentage of a population must be immune to reach COVID-19 herd immunity?   Based on a common estimate that each infected person will infect 2.5 people: 60%.   But it’s not that simple. With a naturally spreading virus like COVID-19—as opposed to a vaccine—variations…

On July 6, 1885, a boy received the first vaccine against rabies. Now, we mark the historic event with World Zoonoses Day—which feels more relevant than ever this year, with a world unmoored by COVID-19 and an endless parade of other zoonotic threats. “Not all zoonotic…

New CDC data reveals an even clearer picture of COVID-19’s disproportionate toll on Black and Latino people in the US. And that is regardless of where they are and how old they are.  

A mutant strain of the novel coronavirus that once seemed trivial has now taken over the globe—but it remains shrouded in mystery.   The mutation’s significance is its location. It impacts the virus’s crucial “spike protein,” which “allows it to enter human cells the way a…

Back in the 1980s, Howard University psychology professor Jules Harrell took racism to the lab to see how witnessing acts of racism affects blood pressure and cardiovascular events. He found that Black people may even carry the stress of racism in their sleep, NBC reports.  

Globally, more than half a million people have lost their lives to COVID-19, and cases shot past the 10 million mark Sunday—grim milestones marked by Johns Hopkins University’s pandemic tracker.

The WHO declared the end of the Ebola outbreak in eastern DRC Thursday—but warned that new flare-ups of that strain could still emerge. With another Ebola strain now circulating in the northwest of the country, there is mounting concern that if the 2 strains combine—likely…

Many African countries face a “catastrophic shortage” of medical professionals as cases are rising fast, the Africa CDC warns. The continent's cases more than tripled in June—while infections among health care workers jumped 203% since late May, according to the…

A racist game played by ER staff in British Columbia—guessing the blood alcohol levels of Indigenous patients—is alarming but not surprising, CBC reports.