Poliovirus is most commonly transmitted through fecal-oral route, meaning it is spread through contact with infected feces. This can occur due to poor sanitation and hygiene practices. Anna might have contracted the poliovirus by consuming contaminated food or water or by coming into contact with objects or surfaces that were contaminated with the virus.
Poliovirus is primarily caused by the poliovirus itself. It is a highly contagious virus that affects the nervous system, specifically targeting the spinal cord and leading to muscle weakness or paralysis. The virus spreads through person-to-person contact, typically through exposure to an infected person's feces or droplets from their cough or sneeze. It can also be spread through contaminated food or water. Immunization with the polio vaccine is the most effective way to prevent the disease.
