| la crosse virus infection and disease in western north carolina. | active surveillance for la crosse infection from 1977 to 1979 revealed 12 laboratory documented cases in children from the cherokee reservation and nearby areas of western north carolina. the annual rate of hospitalization with la crosse virus was isolated from two of 34 pools of male and one of 34 pools of female aedes triseriatus mosquitoes reared from larvae collected around the residences of reservation children who had been hospitalized with encephalitis. the occurrence of the recent cases, ... | 1982 | 7081548 |
| genotypic varieties of la crosse virus isolated from different geographic regions of the continental united states and evidence for a naturally occurring intertypic recombinant la crosse virus. | the tripartite ribonucleic acid (rna) genomes of 23 alternate isolates of la crosse virus have been analyzed by the procedure of oligonucleotide fingerprinting. by comparison with the fingerprints of the three viral rna species (large, medium and small) of prototype la crosse virus, the viruses have been categorized in terms of the degree of their rna sequence relatedness. the a type la crosse viruses, which have been recovered from wisconsin, minnesota, indiana and ohio, have viral rna sequence ... | 1981 | 7246519 |
| seroepidemiology of la crosse virus infection in humans in western north carolina. | on the cherokee indian reservation and surrounding area of western north carolina, an area-wide serosurvey was conducted to determine the prevalence of neutralizing antibody to la crosse (lac) virus. a questionnaire was used to identify risk factors important in exposure to virus-infected mosquitoes in populations near the reservation. of 1,008 serum samples tested, 9.6% were positive for lac virus antibody. for samples solely collected from on (n = 311) or off (n = 697) the reservation, the pre ... | 1996 | 8615442 |
| relative abundance and species composition of mosquito populations (diptera:culicidae) in a la crosse virus-endemic area in western north carolina. | container surveys were conducted in 5 communities on the cherokee indian reservation, an area of western north carolina endemic for transmission of la crosse (lac) virus, to determine the potential for peridomestic mosquito breeding, the relative abundance of mosquito species, and the standing crop of mosquitoes per residence. eleven species of mosquitoes were collected, but 80.9% of all mosquitoes reared from containers were aedes triseriatus (say). all communities averaged > 6 containers per r ... | 1996 | 8699454 |
| seasonal occurrence and abundance of aedes triseriatus and other mosquitoes in a la crosse virus-endemic area in western north carolina. | the species composition and population abundance of mosquitoes were investigated from may to november in 1989 and 1990 on the cherokee indian reservation, an area of western north carolina endemic for transmission of la crosse (lac) virus. mosquitoes representing 6 genera and 13 species were collected. aedes triseriatus was the most abundant species collected, comprising over 98% of mosquitoes collected by ovitrapping and co2-baited suction trapping, and 88% of resting adults collected by vacuum ... | 1996 | 8827591 |
| first isolation of la crosse virus from naturally infected aedes albopictus. | la crosse (lac) virus, a california serogroup bunyavirus, is the leading cause of pediatric arboviral encephalitis in the united states and an emerging disease in tennessee, west virginia, and north carolina. human cases of lac encephalitis in tennessee and north carolina have increased above endemic levels during 1997 to 1999 and may represent an expansion of a new southeastern endemic focus. this report describes the isolation of lac virus from the exotic mosquito aedes albopictus. the discove ... | 2001 | 11747692 |
| economic and social impacts of la crosse encephalitis in western north carolina. | la crosse encephalitis (lace), a human illness caused by a mosquito-transmitted virus, is endemic in western north carolina. to assess the economic and social impacts of the illness, 25 serologically confirmed lace case patients and/or families were interviewed to obtain information on the economic costs and social burden of the disease. the total direct and indirect medical costs associated with lace over 89.6 life years accumulated from the onset of illness to the date of interview for 24 pati ... | 2003 | 14695088 |
| la crosse encephalitis: a persistent arboviral threat in north carolina. | mosquito-borne diseases remain a significant cause of economic, social, and health burdens in north carolina. although recently overshadowed by emerging threats such as chikungunya virus and zika virus, la crosse virus and other endemic arboviruses remain persistent environmental health hazards. indeed, la crosse virus, west nile virus, and eastern equine encephalitis virus accounted for more than 98% of the reported human arboviral diseases acquired in north carolina in the past decade. arbovir ... | 2016 | 27621342 |