Lingering inflammation from viruses like COVID-19 or HIV can take a lasting toll on the brain. New research shows exactly how specific immune system imbalances lead to memory lapses and slowed ...

Measles is doing far more damage than its signature rash suggests. A growing body of research shows the virus can wipe out a substantial share of the immune system’s existing defenses against other ...

By analyzing mice that had been first infected with SARS-CoV-2 and then with influenza A virus, the scientists found that having recovered from COVID had a protective effect against the worst effects ...

In a rare but serious complication of cancer, the body’s own immune system can start attacking the brain, causing rapid-onset memory loss and cognitive deficits. What triggers this sudden biological ...

The word 'virus' gets tossed around a lot. Here's what actually counts, what to watch for, and how to stay two clicks ahead ...

It's important to know the signs of a virus, so that you can act quickly to get rid of any malware and stay safe in future. A virus is a type of malicious software, or malware, that can replicate ...