But healthy people are rife with viruses that don’t make us ill. Scientists estimate that tens of trillions of viruses live inside of us ... In the human body, for example, phages typically ...

Five years on, scientists are starting to understand how the virus can lead to long-term, sometimes invisible changes.

A serious knock to the head may also deliver an insidious blow to the human immune system – a one-two punch that could reawaken dormant viruses in the body, potentially contributing to ...

When a white blood cell finds a germ, it latches onto it. Then it changes its shape to surround the germ. You can imagine the ...

For example, scratching up the inside of your nose ... are teeming with harmful viruses, like influenza. That's the whole point, actually. Boogers serve as your body's front-line defense against ...

This severe stomach virus only needs a single particle to ... moving germs toll-free from location to location outside and inside your body. But when you wash your hands, you create a major ...

Once a pathogen invader, like the flu virus, gets inside your body, you have to respond quickly. Time to turn on your immune system to destroy them. Your first response to infection is fever.

A rash isn't a common COVID-19 symptom, but it can be yet another manifestation of your body's immune response to the virus ... feet and the inside of the mouth," Walls explains, "often without ...

Scientists have already identified that the virus mutated inside the Louisiana patient who ... a runny or stuffy nose, muscle or body aches, headaches, fatigue and fever. In more severe cases ...

But healthy people are rife with viruses that don’t make us ill. Scientists estimate that tens of trillions of viruses live inside us ... In the human body, for example, phages typically ...

Scientists estimate that tens of trillions of viruses live inside us, though they’ve identified just a fraction of them. A vast majority are benign, and some may even be beneficial. We don’t ...