21. Saint Louis encephalitis virus is related to Japanese encephalitis virus and is a member of the Flaviviridae subgroup. 22. Saint Louis encephalitis virus is related to Japanese encephalitis virus and is a member of the Flaviviridae subgroup. 23. The California encephalitis virus invades the CNS through either the cerebral capillary endothelial cells or the choroid plexus. 24. In 1997, the encephalitis virus was detected in some Long Island mosquitoes; it typically appears in August. 25. Chickens are used to monitor the prevalence of encephalitis viruses because the mosquitoes that spread them feed on birds. 26. Health authorities have also launched a drive to spray chemicals to kill mosquitoes that carry the Japanese encephalitis virus . 27. They may be a reservoir for Powassan or St Louis encephalitis virus , based on some antibody screening analyses. 28. Malaysian health officials initially said the deaths were caused by the Japanese encephalitis virus , which is transmitted by mosquitoes. 29. In November 2011, the Japanese encephalitis virus was reported in " Culex bitaeniorhynchus " in South Korea. 30. Divergence between the Venezuelan equine encephalitis virus and the eastern equine virus appears to have been ~ 1400 years ago.
