Technology
Common JC Virus Can Quietly Infect Brains, New Research Suggests
The John Cunningham virus, or JC virus, infects most people and usually remains dormant. New research suggests a novel activation method affecting ten percent of adults globally, potentially leading to brain damage.
The John Cunningham virus, also known as the JC virus or human polyomavirus 2, infects between 50 and 90 percent of adults. Discovered in 1971 and named after the patient from whom it was isolated, the virus spreads through the fecal-oral route. Initial infection by the archetype JC virus is believed to occur in the tonsils or gastrointestinal tract, remaining asymptomatic. The virus then establishes a persistent, silent, lifelong infection in most people. However, new research indicates a possible new activation method for the virus. If activated, the JC virus can become destructive to the brain.
Key Facts
- The JC virus, or John Cunningham virus, can infect up to 90% of people.
- The virus was first isolated in 1971 and named after the patient.
- JC virus spreads through the fecal-oral route.
- Initial infection is usually asymptomatic.
- The virus typically remains dormant after the initial infection.
- New research suggests a novel activation method for the virus.
- Activated JC virus can cause brain damage.
Primary Source
Research Sources
- Ars Technica — You're likely already infected with a brain-eating virus you've never heard of