It starts with a sneeze. Someone on the subway didn't cover their mouth and now a cloud of invisible invaders hangs in the ...

When the first cells appeared on Earth approximately 3.8 billion years ago, viruses were already here to greet them. Ever since, viruses have been devising ways to infect cells, and cells have been ...

Some of our biggest threats can come in the tiniest forms—viruses and bacteria. Thankfully, we are born with a built-in ...

The immune system serves as the body’s primary defense against illness, making its maintenance crucial for overall health. While basic practices like hand washing and balanced nutrition form the ...

Rochester, Minn. — The immune system is meant to protect the body from infection and disease. But with age, it can become less capable of doing so. However, Mayo Clinic researchers have found that ...

Without antibiotics, getting an infection would generally be a much scarier threat. But there is such a thing as taking too many. We asked Arik Alper, MD, a pediatric gastroenterologist at Yale ...

A research team from Umeå University, Sweden, in collaboration with Ghent University, Belgium, has made a groundbreaking ...

Researchers have discovered the “fountain of youth” for cells - but it comes with a big cost. Some people over 60 years old were found to have immune systems that appear to be much younger in wear-and ...