| ecologic studies of venezuelan encephalitis virus in peru during 1970-1971. | venezuelan encephalitis (ve) virus has intermittently produced epidemics and equine epizootics on the dry pacific coastal plain of peru since at least the 1930's. however, evidence that the virus exists in the amazon region of peru to the east of the andes mountains was not obtained until antibodies were found in human sera collected in 1965, and 10 strains of the virus were isolated in a forest near the city of iquitos, peru during february and march 1971. eight strains came from mosquitoes and ... | 1975 | 235838 |
| the first isolations of eastern encephalitis, group c, and guama group arboviruses from the peruvian amazon region of western south america. | two strains of eastern encephalitis (ee) virus were isolated in the amazon region of peru near pucallpa, loreto department, using sentinel hamsters. ee virus antibodies were found in healthy horses at both pucallpa and iquitos in the same department. fourteen group c and four guama group arboviruses were recovered from sentenel hamsters and mosquitoes near iquitos. the group c agents were caraparu-ossa, marituba, and oriboca-itaqui viruses, and the guama group agents were bimiti virus. besides p ... | 1975 | 238693 |
| an unusual strain of venezuelan encephalitis virus existing sympatrically with subtype i-d strains in a peruvian rain forest. | in 1971, an unusual strain of venezuelan encephalitis (ve) virus (71d1252) was recovered from the same small area of a rain forest in the western amazon basin of south america near iquitos, loreto, peru, from which strains of subtype i-d were recovered. the marker characteristics of this strain resembled most closely those of ve subtype iii (mucambo) and were distinctly different from coexisting i-d strains. thus the concurrent presence of two different ve virus subtypes in one place was a strik ... | 1983 | 6136191 |
| venezuelan equine encephalitis febrile cases among humans in the peruvian amazon river region. | a survey was conducted from october 1, 1993 to june 30, 1995 to determine the arboviral etiologies of febrile illnesses in the city of iquitos in the amazon river basin of peru. the study subjects were patients who were enrolled at medical care clinics or in their homes by peruvian ministry of health (moh) workers as part of the passive and active disease surveillance program of the moh. the clinical criterion for enrollment was the diagnosis of a suspected viral-associated, acute, undifferentia ... | 1998 | 9452289 |
| identification and genetic analysis of panama-genotype venezuelan equine encephalitis virus subtype id in peru. | venezuelan equine encephalitis (vee) virus was isolated in 1993, 1994, and 1995 from human cases of acute, undifferentiated, febrile illness in the peruvian amazon basin. two virus isolates were recovered in 1994 from peruvian soldiers at a jungle outpost near pantoja in northern peru, and 10 isolates were obtained from military personnel and civilians in 1993-1995 in iquitos, an urban center in northeastern peru. the genetic relationship of these isolates to other vee virus strains was determin ... | 1998 | 9452290 |
| isolation of viruses from mosquitoes (diptera: culicidae) collected in the amazon basin region of peru. | as part of a comprehensive study on the ecology of arthropod-borne viruses in the amazon basin region of peru, we assayed 539,694 mosquitoes captured in loreto department, peru, for arboviruses. mosquitoes were captured either by dry ice-baited miniature light traps or with aspirators while mosquitoes were landing on human collectors, identified to species, and later tested on vero cells for virus. in total, 164 virus isolations were made and included members of the alphavirus (eastern equine en ... | 2005 | 16366001 |
| vector competence of peruvian mosquitoes (diptera: culicidae) for a subtype iiic virus in the venezuelan equine encephalomyelitis complex isolated from mosquitoes captured in peru. | we evaluated mosquitoes collected in the amazon basin, near iquitos, peru, for their susceptibility to a subtype iiic strain of the venezuelan equine encephalomyelitis complex. this virus had been previously isolated from a pool of mixed culex vomerifer and cx. gnomatos captured near iquitos, peru, in 1997. after feeding on hamsters with viremias of about 10(8) plaque-forming units of virus per ml, cx. gnomatos was the most efficient vector. other species, such as ochlerotatus fulvus and psoroph ... | 2006 | 16646325 |
| susceptibility of peruvian mosquitoes to eastern equine encephalitis virus. | mosquitoes were collected in the amazon basin, near iquitos, peru, and used in experimental studies to evaluate their susceptibility to strains of eastern equine encephalitis virus (eeev) that were isolated from mosquitoes captured within 20 km of iquitos. when fed on hamsters or chickens with a viremia of 4105 plaque-forming units (pfu) of eeev/ml, culex pedroi sirivanakarn and belkin, aedesfulvus (wiedemann), psorophora albigenu (peryassu), and psorophoraferox (von humboldt) were susceptible t ... | 2008 | 18714873 |
| susceptibility of ae. aegypti (diptera: culicidae) to infection with epidemic (subtype ic) and enzootic (subtypes id, iiic, iiid) venezuelan equine encephalitis complex alphaviruses. | to test the hypothesis that enzootic and epidemic venezuelan equine encephalitis (vee) complex alphaviruses can infect and be transmitted by ae. aegypti, we conducted a series of experimental infection studies. one set of experiments tested the susceptibility of geographic strains of ae. aegypti from peru and texas (u.s.a.) for epidemic (subtype ic) and enzootic (subtype id) strains from colombia/venezuela, whereas the second set of experiments tested the susceptibility of ae. aegypti from iquit ... | 2008 | 19058637 |
| venezuelan equine encephalitis virus in iquitos, peru: urban transmission of a sylvatic strain. | enzootic strains of venezuelan equine encephalitis virus (veev) have been isolated from febrile patients in the peruvian amazon basin at low but consistent levels since the early 1990s. through a clinic-based febrile surveillance program, we detected an outbreak of veev infections in iquitos, peru, in the first half of 2006. the majority of these patients resided within urban areas of iquitos, with no report of recent travel outside the city. to characterize the risk factors for veev infection w ... | 2008 | 19079600 |