Vector competence experiments with Rocio virus and three mosquito species from the epidemic zone in Brazil

Detalhes bibliográficos
Autor(a) principal: Mitchell,Carl J.
Data de Publicação: 1986
Outros Autores: Forattini,Oswaldo Paulo, Miller,Barry R.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista de Saúde Pública
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-89101986000300001
Resumo: First-generation progeny of field-collected Psorophora ferox, Aedes scapularis, and Aedes serratus from the Rocio encephalitis epidemic zone in S.Paulo State, Brazil, were tested for vector competency in the laboratory. Psorophora ferox and Ae. scapularis are susceptible to per os infection with Rocio virus and can transmit the virus by bite following a suitable incubation period. Oral ID50S for the two species (10(4.1) and 10(4.3) Vero cell plaque forming units, respectively) did not differ significantly. Infection rates in Ae. serratus never exceeded 36%, and, consequently, an ID50 could not be calculated for this species. It is unlikely that Ae. serratus is an epidemiologically important vector of Rocio virus. The utility of an in vitro feeding technique for demonstrating virus transmission by infected mosquitoes and difficulties encountered in working with uncolonized progeny of field-collected mosquitoes are discussed.
id USP-23_e41f4e168b5f9075e1d7ce15f7a76a76
oai_identifier_str oai:scielo:S0034-89101986000300001
network_acronym_str USP-23
network_name_str Revista de Saúde Pública
repository_id_str
spelling Vector competence experiments with Rocio virus and three mosquito species from the epidemic zone in BrazilEncephalitis viruses/physiologyPsorophora feroxAedes scapularisAedes serratusInsect vectors/microbiologyEncephalitis, epidemic/transmissionArbovirus infectionFirst-generation progeny of field-collected Psorophora ferox, Aedes scapularis, and Aedes serratus from the Rocio encephalitis epidemic zone in S.Paulo State, Brazil, were tested for vector competency in the laboratory. Psorophora ferox and Ae. scapularis are susceptible to per os infection with Rocio virus and can transmit the virus by bite following a suitable incubation period. Oral ID50S for the two species (10(4.1) and 10(4.3) Vero cell plaque forming units, respectively) did not differ significantly. Infection rates in Ae. serratus never exceeded 36%, and, consequently, an ID50 could not be calculated for this species. It is unlikely that Ae. serratus is an epidemiologically important vector of Rocio virus. The utility of an in vitro feeding technique for demonstrating virus transmission by infected mosquitoes and difficulties encountered in working with uncolonized progeny of field-collected mosquitoes are discussed.Faculdade de Saúde Pública da Universidade de São Paulo1986-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-89101986000300001Revista de Saúde Pública v.20 n.3 1986reponame:Revista de Saúde Públicainstname:Universidade de São Paulo (USP)instacron:USP10.1590/S0034-89101986000300001info:eu-repo/semantics/openAccessMitchell,Carl J.Forattini,Oswaldo PauloMiller,Barry R.eng2005-06-21T00:00:00Zoai:scielo:S0034-89101986000300001Revistahttp://www.scielo.br/scielo.php?script=sci_serial&pid=0034-8910&lng=pt&nrm=isoONGhttps://old.scielo.br/oai/scielo-oai.phprevsp@org.usp.br||revsp1@usp.br1518-87870034-8910opendoar:2005-06-21T00:00Revista de Saúde Pública - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Vector competence experiments with Rocio virus and three mosquito species from the epidemic zone in Brazil
title Vector competence experiments with Rocio virus and three mosquito species from the epidemic zone in Brazil
spellingShingle Vector competence experiments with Rocio virus and three mosquito species from the epidemic zone in Brazil
Mitchell,Carl J.
Encephalitis viruses/physiology
Psorophora ferox
Aedes scapularis
Aedes serratus
Insect vectors/microbiology
Encephalitis, epidemic/transmission
Arbovirus infection
title_short Vector competence experiments with Rocio virus and three mosquito species from the epidemic zone in Brazil
title_full Vector competence experiments with Rocio virus and three mosquito species from the epidemic zone in Brazil
title_fullStr Vector competence experiments with Rocio virus and three mosquito species from the epidemic zone in Brazil
title_full_unstemmed Vector competence experiments with Rocio virus and three mosquito species from the epidemic zone in Brazil
title_sort Vector competence experiments with Rocio virus and three mosquito species from the epidemic zone in Brazil
author Mitchell,Carl J.
author_facet Mitchell,Carl J.
Forattini,Oswaldo Paulo
Miller,Barry R.
author_role author
author2 Forattini,Oswaldo Paulo
Miller,Barry R.
author2_role author
author
dc.contributor.author.fl_str_mv Mitchell,Carl J.
Forattini,Oswaldo Paulo
Miller,Barry R.
dc.subject.por.fl_str_mv Encephalitis viruses/physiology
Psorophora ferox
Aedes scapularis
Aedes serratus
Insect vectors/microbiology
Encephalitis, epidemic/transmission
Arbovirus infection
topic Encephalitis viruses/physiology
Psorophora ferox
Aedes scapularis
Aedes serratus
Insect vectors/microbiology
Encephalitis, epidemic/transmission
Arbovirus infection
description First-generation progeny of field-collected Psorophora ferox, Aedes scapularis, and Aedes serratus from the Rocio encephalitis epidemic zone in S.Paulo State, Brazil, were tested for vector competency in the laboratory. Psorophora ferox and Ae. scapularis are susceptible to per os infection with Rocio virus and can transmit the virus by bite following a suitable incubation period. Oral ID50S for the two species (10(4.1) and 10(4.3) Vero cell plaque forming units, respectively) did not differ significantly. Infection rates in Ae. serratus never exceeded 36%, and, consequently, an ID50 could not be calculated for this species. It is unlikely that Ae. serratus is an epidemiologically important vector of Rocio virus. The utility of an in vitro feeding technique for demonstrating virus transmission by infected mosquitoes and difficulties encountered in working with uncolonized progeny of field-collected mosquitoes are discussed.
publishDate 1986
dc.date.none.fl_str_mv 1986-06-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-89101986000300001
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-89101986000300001
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0034-89101986000300001
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Faculdade de Saúde Pública da Universidade de São Paulo
publisher.none.fl_str_mv Faculdade de Saúde Pública da Universidade de São Paulo
dc.source.none.fl_str_mv Revista de Saúde Pública v.20 n.3 1986
reponame:Revista de Saúde Pública
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Revista de Saúde Pública
collection Revista de Saúde Pública
repository.name.fl_str_mv Revista de Saúde Pública - Universidade de São Paulo (USP)
repository.mail.fl_str_mv revsp@org.usp.br||revsp1@usp.br
_version_ 1748936488580546560

Registros relacionados