11. However, enterovirus infections are occasionally medical emergencies. 12. Even the sickest enterovirus victim may spontaneously recover. 13. Historically, poliomyelitis was the most significant disease caused by an enterovirus , poliovirus. 14. Hong Kong health authorities have been watching closely for an outbreak of the enterovirus 71. 15. Enteroviruses infect the nose and the throat.16. Serologic studies have distinguished 71 human enterovirus serotypes on the basis of antibody neutralization tests. 17. Enterovirus 71 hits Taiwan each summer.18. Enterovirus describes a large group of different viruses, almost all of which are not lethal.19. Some viruses such as enteroviruses may cause aseptic meningitis that is very clinically similar to mumps. 20. Enteroviruses isolated more recently are named with a system of consecutive numbers : EV71, etc.