Poliovirus

**Definition:** A species of ENTEROVIRUS which is the causal agent of POLIOMYELITIS in humans. Three serotypes (strains) exist. Transmission is by the fecal-oral route, pharyngeal secretions, or mechanical vector (flies). Vaccines with both inactivated and live attenuated virus have proven effective in immunizing against the infection.

**Tree numbers:** - B04.820.578.688.005.004.003.001

**Synonyms:** - Polioviruses