During the recent Covid-19 pandemic, the rate of serious illness and death was jarringly high in older populations. Why? Weakening immune systems — as we age, we become more vulnerable to infections, ...

Lindsey DeSoto, RD, is a nutrition writer, medical reviewer, and registered dietitian who helps clients improve their diet for health-related reasons. Her writing covers a variety of topics, including ...

Hepatitis C is a viral infection that affects your liver, causing swelling and damage. Hepatitis C is transmitted through contact with the blood of a person who has hepatitis C — often through the use ...

A remarkable new way to tackle deadly drug-resistant infections - by supercharging the body's own immune cells rather than relying on new medicines - has been developed by scientists.

Of course, the immune system’s job is to protect your body from all invaders that may be harmful, not just certain viruses: When functioning properly, it alerts your body to a wide range of potential ...

It is a myth that the COVID-19 vaccine weakens the immune system. After someone receives a vaccine, their immune system is better equipped to protect against subsequent infections. Although there are ...