Portside

No legal doctrine should shield anyone—including Donald Trump, if reelected—from prosecution for criminal wrongdoing.

Important immune cells survive in the bone marrow of people who were infected with the virus or were inoculated against it, new research suggests.

Growing evidence suggests that people with cancer and other conditions that challenge their immune systems may be incubators of mutant viruses.

There's no evidence that any of the current Covid-19 vaccines can completely stop people from being infected – and this has implications for our prospects of achieving herd immunity.

What if you’ve already had Covid-19 — do you still need a vaccine? Experts tackle questions about vaccine immunity.

“In an America...Black people ‘are considered dangerous even when they are in their living rooms eating ice cream, asleep in their beds, playing in the park, standing in the pulpit of their church, birdwatching, exercising in public, or walking..."

Reports of reinfection instead may be cases of drawn-out illness. A decline in antibodies is normal after a few weeks, and people are protected from the coronavirus in other ways.

Antibodies to the virus faded quickly in asymptomatic people, scientists reported. That does not mean immunity disappears.

Gut dwellers signal immune cells to stay calm and dial down inflammation.

The world’s most dangerous malaria parasite shuffles its genes in a clever attempt to avoid the immune system. A new approach has begun to reveal how the process works.