human herpesvirus 7

Human herpesvirus 7 (HHV-7) is a common virus that infects most people during childhood, usually causing no symptoms or mild illness. It belongs to the herpesvirus family, which includes the virus responsible for cold sores and chickenpox. Once infected, the virus stays in your body for life, lying dormant in your nerve cells. Sometimes, it can reactivate and cause health issues like fever, tiredness, or skin rashes, especially in people with weakened immune systems. HHV-7 is typically spread through saliva and close contact. Most people recover without problems, and it’s generally not a major health concern.