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characterization of two new serotypes of san miguel sea lion virus.two new virus isolates, one from a california sea lion (zalophus californianus californianus) and the other from a northern fur seal (callorhinus ursinus) were partially characterized. their physicochemical characteristics were similar to those of vesicular exanthema of swine virus (vesv) and san miguel sea lion virus (smsv). the virion morphology was in both instances typically calicivirus. on the basis of this and the serum cross-neutralization testing, these isolates were classed as two new t ...197767101
a new calicivirus isolated from a marine mammal.a new serotype of calicivirus, designated as san miguel sea lion virus type 6 (smsv-6), was isolated from vesicular lesions on the flipper of a california sea lion pup. serologic studies show that smsv-6 neutralizing antibodies (sn) occur frequently among california sea lions and occasionally among northern fur seals. feral swine, 1- to 6-week elephant seal pups and grey whales tested negative for smsv-6 antibody.1979227346
new marine calicivirus serotype infective for swine.a new serotype of calicivirus was isolated from california sea lions (zalophus californianus) with severe vesicular disease. neutralizing antibodies were found in 27 of 82 (32.9%) serum samples from california sea lions and in 15 of 146 (10.3%) serum samples from steller sea lions (eumetopias jubatus) tested. the seropositive animals were widely dispersed along the margins of the eastern pacific basin, from the bering sea to the santa barbara channel. seropositive samples were found from as earl ...19902167030
antibodies to marine caliciviruses in the steller sea lion (eumetopias jubatus schreber).sera from 145 steller sea lions (76 adults, three subadults, 37 pups, and 29 fetuses) were tested for neutralizing antibodies to nine marine calicivirus serotypes. antibodies were found to san miguel sea lion virus (smsv) types 1, 5, 6, 7, 8, 10 and 13, and to tillamook (bovine) calicivirus, but no antibodies were found to the walrus calicivirus. titers (microtiter neutralization assay) ranged from 1:20 to 1:320, with many positive reactions at the higher dilutions (greater than or equal to 1:80 ...19873820427
epizootic vesicular disease in captive california sea lions.an epizootic of vesicular disease occurred in a group of semi-domesticated california sea lions (zalophus californianus) during the months of april and may 1997. ten castrated mature male sea lions, ages 12 to 19 yr, were housed in three adjacent open-ocean net enclosures in san diego bay (california, usa). four animals (40%) developed oral and extremity vesicles, anorexia, and were reluctant to perform learned behaviors. one animal developed vesicles but maintained a normal appetite and behavio ...200010941736
characterization of san miguel sea lion virus populations using pyrosequencing-based methods.san miguel sea lion virus (smsv) is a small rna virus in the genus vesivirus with an unusually broad host range. three populations of smsv were examined by pcr amplification of the capsid precursor and putative helicase genes, followed by pyrosequencing. the populations were nasal swabs from two smsv infected california sea lions (zalophus californianus) from two different years, and a virus isolate from the earlier swab that was passaged in cell culture five times. in the capsid precursor, exte ...201019931646
premature parturition in the california sea lion.twenty percent of the california sea lion pups born on san miguel island die due to premature parturition. specimens collected from premature-partus animals resulted in recovery of a virus, san miguel sea lion virus, indistinguishable from vesicular exanthema of swine virus, and leptospira pomona from some of the premature cows and pups. the age range of 10 females delivering healthy pups in june was 10-14 years. with one exception, the ages in 10 aborting females was 6-8 years. the p,p'-dde le ...1976815567
vesicular exanthema of swine.vesicular exanthema of swine (ves) was first recognized in 1932. at the time, eradication measures and, later, quarantine procedures were instituted and extension of the disease to surrounding farms appeared to have been prevented. between 1932 and 1936, however, seemingly unrelated epizootics continued among swine herds being fed raw garbage. in 1936, ves disappeared only to reappear in 1939. the disease was contained within california until 1952, at which time it spread to all the major swine ...1976786969
prevalence of vesicular exanthema of swine antibodies among feral mammals associated with the southern california coastal zones.serum-neutralizing antibodies to both vesicular exanthema of swine virus (vesv) and san miguel sea lion virus (smsv) were found in a number of animal species having an association with the southern california coastal zones. california sea lions (zalophus californianus) had antibodies to 9 vesv types (a48, c52, d53, e54, f54, g55, i55, j56, and k56). fur seals (callorhinus ursinus) and elephant seal pups (mirounga angustirostris) were tested for antibodies to 6 vesv types and all were negative. c ...1978629463
isolation of san miguel sea lion virus from samples of an animal food product produced from northern fur seal (callorhinus ursinus) carcasses.a virus was isolated from california sea lions (zalophus californianus californianus) and northern fur seals (callorhinus ursinus) in 1972. it was later named san miguel sea lion virus (smsv). state and federal livestock disease control agencies became concerned, because smsv was found to be indistinguishable from vesicular exanthema of swine virus and to cause (in laboratory trials) clinical signs in swine similar to those produced by vesicular exanthema of swine virus. ground carcasses of nort ...1978629435
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