Definition of St Louis encephalitis in English:
 St Louis encephalitis
nouns(ə)ntˈluːɪ(s)ɛnkɛfəˈlʌɪtɪs
mass nounA form of viral encephalitis which can be fatal and is transmitted by mosquitoes.
 Example sentencesExamples
-  West Nile virus is a flavivirus within the Japanese encephalitis serocomplex, which includes St Louis encephalitis, yellow fever, and dengue fever.
 -  While foreign in origin, the West Nile strain is related to US-based viruses that cause Eastern Equine Encephalitis and St Louis encephalitis.
 -  After a period of less than conclusive testing carried out in collaboration with CDC, the state's public health laboratory concluded that it was probably facing an outbreak of the mosquito-borne St Louis encephalitis.