What diseAse is caused by human herpes virus 6?

Human herpesvirus 6 (HHV-6) is a common virus that can cause a variety of illnesses, including:

- Roseola infantum: This is a common childhood disease that is characterized by a high fever, rash, and swollen lymph nodes.

- Sixth disease: This is a variant of roseola that is milder and occurs in older children and adults.

- Exanthema subitum: This is a rare form of HHV-6 infection that can cause a rash, fever, and seizures in infants.

- HHV-6 encephalitis: This is a rare but serious infection of the brain that can be caused by HHV-6.

HHV-6 is also associated with several other conditions, including:

- Chronic fatigue syndrome

- Fibromyalgia

- Multiple sclerosis

- Alzheimer's disease

- Parkinson's disease

However, the role of HHV-6 in these conditions is not fully understood and more research is needed to determine if the virus is a cause or a consequence of these diseases.