California encephalitis


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Related to California encephalitis: encephalitis virus

bun·ya·vi·rus en·ceph·a·li·tis

encephalitis of abrupt onset, with severe frontal headache and low-grade to moderate fever, caused by members of the genus Bunyavirus (Bunyaviridae family); infections also occur in rodents, lagomorphs, and domestic animals.

California encephalitis

arthropod-borne encephalitis or encephalomeningitis, induced by an arbovirus. Infection usually is caused by a mosquito bite. Epidemics occur mainly in the Midwest, on the eastern seaboard, and in Texas and Louisiana. The virus was first isolated in California. The infection generally follows one of two clinical courses. The mild form is characterized by headache, malaise, GI symptoms, and a fever that may reach 104° F. The more severe form may be marked by a sudden onset of fever, vomiting, headaches, lethargy, and signs of neurological involvement such as loss of reflexes, disorientation, seizure, loss of consciousness, and flaccid paralysis. Recovery usually begins in 1 week. Mortality rate is very low, but a significant number of patients have neurological sequelae for 1 year or more. Treatment usually involves administration of anticonvulsant and sedative medications. See also arbovirus, encephalitis.
A viral infection by any of 4 California Bunyaviridae. Most cases of California encephalitis are caused by the LaCrosse virotype, which occurs in the summer in north central US. In endemic regions, bunyaviridae causes 20% of acute childhood meningitides but has a very low mortality rate
Epidemiology The infectious cycle is maintained in the mosquito vector, Aedes triseriatus
Prognosis Excellent; rare psychological residua

California encephalitis

A viral infection by any of 4 California Bunyaviridae; most CE is by the LaCrosse virotype, which occurs in the summer in north central US; in endemic regions, CE causes 20% of acute childhood meningitides with a very low mortality rate; the infectious cycle is maintained in the mosquito vector, Aedes triseriatus Clinical Non-specific viral prodrome, followed by a 3-8 day meningismus with spontaneous resolution Prognosis Excellent; rare psychological residua

California,

31st state, admitted to the United States in 1850.
California encephalitis - encephalitis caused by genus Bunyavirus; may be seen in domestic animals and rodents.
californium - man-made radioactive actinide, chemical symbol Cf, used in radiotherapy.
California Psychological Inventory Test - personality inventory with emphasis on social interaction.

California encephalitis

an encephalitis of humans caused by the La Crosse virus isolated from mosquitoes in California. Occurs experimentally in small laboratory rodents when the virus is injected intracerebrally. Suspected of natural passage through wild and domestic mammals.
References in periodicals archive ?
Phylogenetic analysis of the nucleotide sequences of Chatanga virus strains, the new representative of California encephalitis serocomplex, isolated in different regions of the Russian Federation [in Russian].
Serodiagnosis and epidemiology of a California encephalitis group of infections in the Ryazan region.
The EIP Encephalitis Project represents the largest cohort of patients (>5,000) with encephalitis studied to date: >4,000 case-patients were enrolled in the California Encephalitis Project and >700 in the Tennessee Unexplained Encephalitis Project.
Testing of residual samples from the California Encephalitis Project confirmed that anti-NMDAR encephalitis affects a much broader spectrum of patients, including male and pediatric patients without a neoplastic antigenic stimulus (27).
The California Encephalitis Project (CEP), initiated in 1998 to study the causative agents, epidemiology, and clinical features of encephalitis, has identified 20 cases of culture-confirmed tuberculous encephalitis.
We thank the clinicians for referring patients to the California Encephalitis Project and the laboratory staff in the Viral and Rickettsial Disease Laboratory (Richmond, CA) and Microbial Disease Laboratory (Richmond) as well as the Contra Costa County Public Health Laboratory (Martinez, CA) for performing diagnostic testing.
Enzootic monitoring by the California Encephalitis Virus Surveillance Program and associated field research projects provided an effective early warning that detected the introduction of WNV into rural southeastern California before reported avian, equine, or human illness.
Funds that defray most of the cost of the California Encephalitis Virus Surveillance Program were provided by mosquito and vector control districts and other local agencies.
Since 1998, serum and other samples (cerebrospinal fluid [CSF], throat and rectal swabs, brain tissue) from patients with encephalitis have been submitted to the California Encephalitis Project by participating physicians throughout California.
The arbovirus California encephalitis virus was first isolated in 1943 from mosquitoes collected in Kern County, California (1).

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