A virus, just one, latches on to one of ... "keys" to invade healthy cells so they can't spread the infection. And third, as the animation shows, your immune system is busy attacking the viruses ...

A contaminated needle stick or the sharp edges of a monkey cage could also pass on the virus. It’s very rare. Scientists know of only about 50 cases of human infection with B virus since 1932 ...

In people with very weak immune systems, the virus can bring on a serious brain infection called progressive multifocal leukoencephalopathy (PML). PML damages the outer coating of your nerve cells.

Over 800 million people around the world are infected with genital herpes, caused by the herpes simplex virus. Stock image of a woman (main) and sores from a herpes zoster or shingles infection ...

However, these symptoms are not always indicative of a virus infection. Common signs of a viral infection, like COVID-19, include fever, cough, and fatigue. While there are many other symptoms of an ...

The presence of hepatitis B surface antibodies in the blood indicates a person is recovering from a hepatitis B virus infection. It means that their immunity to HBV is increasing. By testing a ...

Serological studies have also revealed evidence of past Marburg virus infection in Nigeria. While the host, or reservoir, of the virus is not conclusively identified, the virus has been associated ...

"Flu virus infection of the respiratory tract can trigger an extreme inflammatory response in the body and can lead to sepsis, the body's life-threatening response to infection," the CDC says.

Before April 2022, monkeypox virus infection in humans was seldom reported outside African regions where it is endemic. Currently, cases are occurring worldwide. Transmission, risk factors ...

is a virus that can cause respiratory infections in adults and children. The symptoms of this infection can include runny nose, coughing, and fever. Infection with RSV can lead to potentially ...

A stomach virus typically refers to gastroenteritis. While people often call the infection “stomach flu,” it is neither related to seasonal flu, nor does it occur in the stomach. Instead ...

And on July 3, the team published a paper in Science Translational Medicine that found the virus was replicating in tissues for up to two years after infection, including in people with long COVID.