A Possible Role for Rusa Deer (Cervus timorensis russa) and Wild Pigs in Spread of Trypanosoma evansi from Indonesia to Papua New Guinea

Detalhes bibliográficos
Autor(a) principal: Reid,SA
Data de Publicação: 1999
Outros Autores: Husein,A, Hutchinson,GW, Copeman,DB
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Memórias do Instituto Oswaldo Cruz
Texto Completo: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02761999000200013
Resumo: Movement of transmigrants and livestock from western Indonesia to southeastern areas of Irian Jaya near the border with Papua New Guinea may pose a risk of introducing Trypanosoma evansi into Papua New Guinea via feral Rusa deer (Cervus timorensis russa) and wild pigs which inhabit these areas in large numbers. Pilot experimental studies were conducted to observe infection in pigs and Rusa deer with a strain of T. evansi isolated in Indonesia. Parasitaemia and signs of clinical disease were monitored each second day for 120 days. Trypanosomes were observed in haematocrit tubes at the plasma-buffy coat interface of jugular blood of deer and pigs on 86% and 37% of sampling occasions respectively. Parasitaemia was at a high level in deer for 35% of the time but for only 11.5% of the time in pigs. Results indicate that both Rusa deer and pigs have a high tolerance for infection with T. evansi. The deer suffered mild anaemia evidenced by a 25% reduction in packed cell volume (PCV) 14 days after infection which coincided with the initial peak in parasitaemia. However, PCV had returned to pre infection values by the end of the experiment. The pigs showed no change in PCV. There were no visual indications of disease in either species and appetite was not noticeably affected. It was concluded that both Rusa deer and pigs were capable reservoir hosts for T. evansi but that Rusa deer, with their more persistent higher levels of parasitaemia, have more potential to spread T. evansi into Papua New Guinea from West Irian than pigs.
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spelling A Possible Role for Rusa Deer (Cervus timorensis russa) and Wild Pigs in Spread of Trypanosoma evansi from Indonesia to Papua New GuineaTrypanosoma evansireservoir hostsepidemiologypigdeerMovement of transmigrants and livestock from western Indonesia to southeastern areas of Irian Jaya near the border with Papua New Guinea may pose a risk of introducing Trypanosoma evansi into Papua New Guinea via feral Rusa deer (Cervus timorensis russa) and wild pigs which inhabit these areas in large numbers. Pilot experimental studies were conducted to observe infection in pigs and Rusa deer with a strain of T. evansi isolated in Indonesia. Parasitaemia and signs of clinical disease were monitored each second day for 120 days. Trypanosomes were observed in haematocrit tubes at the plasma-buffy coat interface of jugular blood of deer and pigs on 86% and 37% of sampling occasions respectively. Parasitaemia was at a high level in deer for 35% of the time but for only 11.5% of the time in pigs. Results indicate that both Rusa deer and pigs have a high tolerance for infection with T. evansi. The deer suffered mild anaemia evidenced by a 25% reduction in packed cell volume (PCV) 14 days after infection which coincided with the initial peak in parasitaemia. However, PCV had returned to pre infection values by the end of the experiment. The pigs showed no change in PCV. There were no visual indications of disease in either species and appetite was not noticeably affected. It was concluded that both Rusa deer and pigs were capable reservoir hosts for T. evansi but that Rusa deer, with their more persistent higher levels of parasitaemia, have more potential to spread T. evansi into Papua New Guinea from West Irian than pigs.Instituto Oswaldo Cruz, Ministério da Saúde1999-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02761999000200013Memórias do Instituto Oswaldo Cruz v.94 n.2 1999reponame:Memórias do Instituto Oswaldo Cruzinstname:Fundação Oswaldo Cruzinstacron:FIOCRUZ10.1590/S0074-02761999000200013info:eu-repo/semantics/openAccessReid,SAHusein,AHutchinson,GWCopeman,DBeng2020-04-25T17:48:07Zhttp://www.scielo.br/oai/scielo-oai.php0074-02761678-8060opendoar:null2020-04-26 02:08:50.319Memórias do Instituto Oswaldo Cruz - Fundação Oswaldo Cruztrue
dc.title.none.fl_str_mv A Possible Role for Rusa Deer (Cervus timorensis russa) and Wild Pigs in Spread of Trypanosoma evansi from Indonesia to Papua New Guinea
title A Possible Role for Rusa Deer (Cervus timorensis russa) and Wild Pigs in Spread of Trypanosoma evansi from Indonesia to Papua New Guinea
spellingShingle A Possible Role for Rusa Deer (Cervus timorensis russa) and Wild Pigs in Spread of Trypanosoma evansi from Indonesia to Papua New Guinea
Reid,SA
Trypanosoma evansi
reservoir hosts
epidemiology
pig
deer
title_short A Possible Role for Rusa Deer (Cervus timorensis russa) and Wild Pigs in Spread of Trypanosoma evansi from Indonesia to Papua New Guinea
title_full A Possible Role for Rusa Deer (Cervus timorensis russa) and Wild Pigs in Spread of Trypanosoma evansi from Indonesia to Papua New Guinea
title_fullStr A Possible Role for Rusa Deer (Cervus timorensis russa) and Wild Pigs in Spread of Trypanosoma evansi from Indonesia to Papua New Guinea
title_full_unstemmed A Possible Role for Rusa Deer (Cervus timorensis russa) and Wild Pigs in Spread of Trypanosoma evansi from Indonesia to Papua New Guinea
title_sort A Possible Role for Rusa Deer (Cervus timorensis russa) and Wild Pigs in Spread of Trypanosoma evansi from Indonesia to Papua New Guinea
author Reid,SA
author_facet Reid,SA
Husein,A
Hutchinson,GW
Copeman,DB
author_role author
author2 Husein,A
Hutchinson,GW
Copeman,DB
author2_role author
author
author
dc.contributor.author.fl_str_mv Reid,SA
Husein,A
Hutchinson,GW
Copeman,DB
dc.subject.por.fl_str_mv Trypanosoma evansi
reservoir hosts
epidemiology
pig
deer
topic Trypanosoma evansi
reservoir hosts
epidemiology
pig
deer
dc.description.none.fl_txt_mv Movement of transmigrants and livestock from western Indonesia to southeastern areas of Irian Jaya near the border with Papua New Guinea may pose a risk of introducing Trypanosoma evansi into Papua New Guinea via feral Rusa deer (Cervus timorensis russa) and wild pigs which inhabit these areas in large numbers. Pilot experimental studies were conducted to observe infection in pigs and Rusa deer with a strain of T. evansi isolated in Indonesia. Parasitaemia and signs of clinical disease were monitored each second day for 120 days. Trypanosomes were observed in haematocrit tubes at the plasma-buffy coat interface of jugular blood of deer and pigs on 86% and 37% of sampling occasions respectively. Parasitaemia was at a high level in deer for 35% of the time but for only 11.5% of the time in pigs. Results indicate that both Rusa deer and pigs have a high tolerance for infection with T. evansi. The deer suffered mild anaemia evidenced by a 25% reduction in packed cell volume (PCV) 14 days after infection which coincided with the initial peak in parasitaemia. However, PCV had returned to pre infection values by the end of the experiment. The pigs showed no change in PCV. There were no visual indications of disease in either species and appetite was not noticeably affected. It was concluded that both Rusa deer and pigs were capable reservoir hosts for T. evansi but that Rusa deer, with their more persistent higher levels of parasitaemia, have more potential to spread T. evansi into Papua New Guinea from West Irian than pigs.
description Movement of transmigrants and livestock from western Indonesia to southeastern areas of Irian Jaya near the border with Papua New Guinea may pose a risk of introducing Trypanosoma evansi into Papua New Guinea via feral Rusa deer (Cervus timorensis russa) and wild pigs which inhabit these areas in large numbers. Pilot experimental studies were conducted to observe infection in pigs and Rusa deer with a strain of T. evansi isolated in Indonesia. Parasitaemia and signs of clinical disease were monitored each second day for 120 days. Trypanosomes were observed in haematocrit tubes at the plasma-buffy coat interface of jugular blood of deer and pigs on 86% and 37% of sampling occasions respectively. Parasitaemia was at a high level in deer for 35% of the time but for only 11.5% of the time in pigs. Results indicate that both Rusa deer and pigs have a high tolerance for infection with T. evansi. The deer suffered mild anaemia evidenced by a 25% reduction in packed cell volume (PCV) 14 days after infection which coincided with the initial peak in parasitaemia. However, PCV had returned to pre infection values by the end of the experiment. The pigs showed no change in PCV. There were no visual indications of disease in either species and appetite was not noticeably affected. It was concluded that both Rusa deer and pigs were capable reservoir hosts for T. evansi but that Rusa deer, with their more persistent higher levels of parasitaemia, have more potential to spread T. evansi into Papua New Guinea from West Irian than pigs.
publishDate 1999
dc.date.none.fl_str_mv 1999-03-01
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://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02761999000200013
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02761999000200013
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0074-02761999000200013
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 Instituto Oswaldo Cruz, Ministério da Saúde
publisher.none.fl_str_mv Instituto Oswaldo Cruz, Ministério da Saúde
dc.source.none.fl_str_mv Memórias do Instituto Oswaldo Cruz v.94 n.2 1999
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instname_str Fundação Oswaldo Cruz
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repository.name.fl_str_mv Memórias do Instituto Oswaldo Cruz - Fundação Oswaldo Cruz
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