| polioviruses | Species of enterovirus causing acute infection in humans and leading to nervous system damage in a minority of cases. Humans are the only natural host, but infection can also occur in non-human primates and experimentally in rodents. (12 Dec 1998) |
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| polioviruses, human 1-3 | Species of enterovirus which are the causal agents of poliomyelitis in humans. Three serotypes (strains) exist: brunhilde (type 1), lansing (type 2), and leon (type 3). Transmission is by the faecal-oral route, pharyngeal secretions, or mechanical vector (flies). Both inactivated and live attenuated vaccines have proven effective in combatting the infection. (12 Dec 1998) |
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