| hantavirus pulmonary syndrome in california: report of two cases and investigation. | we report two cases of hantavirus pulmonary syndrome that were probably acquired in california. genetic analysis of tissue specimens from one of the patients revealed that the virus isolated is a variant of the strain (sin nombre virus) identified in the outbreak of hantavirus pulmonary syndrome that occurred in the four corners region of the southwestern united states in 1993. in addition to presenting the clinical features of the two cases, we discuss the possible risk factors for infection. | 1994 | 7888541 |
| occupational exposure leading to hantavirus pulmonary syndrome in a utility company employee. | hantavirus pulmonary syndrome is a newly recognized rodent-borne zoonosis. we report a case of hantavirus pulmonary syndrome in an employee of a california utility company who was probably occupationally exposed to sin nombre virus. environmental assessment and genetic comparison of the patient's hantavirus isolates to hantavirus isolates from rodents trapped at possible sites of exposure suggested that the patient contracted his infection at the work site. the study revealed a close corresponde ... | 1996 | 8722943 |
| seroepidemiologic studies of hantavirus infection among wild rodents in california. | a total of 4,626 mammals were serologically tested for antibodies to sin nombre virus. all nonrodent species were antibody negative. among wild rodents, antibody prevalence was 8.5% in murids, 1.4% in heteromyids, and < 0.1% in sciurids. of 1,921 peromyscus maniculatus (deer mice), 226 (11.8%) were antibody positive, including one collected in 1975. the highest antibody prevalence (71.4% of 35) was found among p. maniculatus on santa cruz island, off the southern california coast. prevalence of ... | 1997 | 9204301 |
| population dynamics of the deer mouse (peromyscus maniculatus) and sin nombre virus, california channel islands. | hantavirus pulmonary syndrome, first documented in 1993, is caused by sin nombre virus (snv), which is carried by the peromyscus species. in 1994, high snv antibody prevalence was identified in deer mice from two california channel islands. we sampled two locations on three islands to estimate mouse population density and snv prevalence. population flux and snv prevalence appear to vary independently. | 1997 | 9284383 |
| genetic reassortment among viruses causing hantavirus pulmonary syndrome. | in order to determine the frequency and characteristics of reassortment among viruses causing hantavirus pulmonary syndrome (hps), mixed infections were initiated in tissue culture by using two closely related strains of sin nombre virus, cc107 (from eastern california) and nmr11 (from new mexico), which share the same species of rodent host in nature, the deer mouse (peromyscus maniculatus). potential reassortant virus plaques were screened by multiplex rt-pcr, using primers specific for indivi ... | 1998 | 9501041 |
| hantavirus (bunyaviridae) infections in rodents from orange and san diego counties, california. | during a screening program to determine the extent of hantavirus activity in orange and san diego counties, california, serum samples from 2,365 rodents representing nine genera and 15 species were tested for hantavirus antibodies. a reverse transcription-polymerase chain reaction on selected seropositive rodents was used to identify the specific hantavirus. rodents positive for sin nombre virus (snv) antibodies by western blot included 86 (9.1%) of 948 deer mice (peromyscus maniculatus), four ( ... | 1999 | 9988327 |
| acute infection with sin nombre hantavirus without pulmonary edema. | acute infection with sin nombre virus has been associated with development of hantavirus cardiopulmonary syndrome (hcps), a severe cardiopulmonary illness with respiratory failure and shock. we present two cases of sin nombre hantavirus infections that did not lead to marked pulmonary complications in two otherwise healthy young adults from utah and california. sin nombre virus causes a wider spectrum of disease severity than has been previously reported. | 1999 | 10530462 |
| role of maternal antibody in natural infection of peromyscus maniculatus with sin nombre virus. | data from naturally infected deer mice (peromyscus maniculatus) were used to investigate vertical transmission of sin nombre virus (snv) and snv-specific antibody. the antibody prevalence in juvenile mice (14 g or less) was inversely proportional to the mass of the animal, with juvenile deer mice weighing less than 11 g most likely to be antibody positive (26.9%) and juvenile mice weighing between 13 and 14 g least likely to be antibody positive (12.9%). although a significant sex bias in seropo ... | 2000 | 10666274 |
| remote sensing and geographic information systems: charting sin nombre virus infections in deer mice. | we tested environmental data from remote sensing and geographic information system maps as indicators of sin nombre virus (snv) infections in deer mouse (peromyscus maniculatus) populations in the walker river basin, nevada and california. we determined by serologic testing the presence of snv infections in deer mice from 144 field sites. we used remote sensing and geographic information systems data to characterize the vegetation type and density, elevation, slope, and hydrologic features of ea ... | 2000 | 10827114 |
| sin nombre virus infection in deer mice, channel islands, california. | | 2008 | 19046540 |
| biogeographic and ecological regulation of disease: prevalence of sin nombre virus in island mice is related to island area, precipitation, and predator richness. | the relative roles of top-down and bottom-up forces in affecting disease prevalence in wild hosts is important for understanding disease dynamics and human disease risk. we found that the prevalence of sin nombre virus (snv), the agent of a severe disease in humans (hantavirus pulmonary syndrome), in island deer mice from the eight california channel islands was greater with increased precipitation (a measure of productivity), greater island area, and fewer species of rodent predators. in findin ... | 2011 | 21508614 |
| hantavirus infections among overnight visitors to yosemite national park, california, usa, 2012. | in summer 2012, an outbreak of hantavirus infections occurred among overnight visitors to yosemite national park in california, usa. an investigation encompassing clinical, epidemiologic, laboratory, and environmental factors identified 10 cases among residents of 3 states. eight case-patients experienced hantavirus pulmonary syndrome, of whom 5 required intensive care with ventilatory support and 3 died. staying overnight in a signature tent cabin (9 case-patients) was significantly associated ... | 2014 | 24565589 |