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, Husein, A, Hutchinson, GW and Copeman, DB (1999) A possible role for Rusa deer (Cervus timorensis russa) and wild pigs in spread of Trypanosoma evansi from Indonesia to Papua New Guinea. Memorias Do Instituto Oswaldo Cruz, 94 2: 195-197. doi:10.1590/S0074-02761999000200013


Author Reid, SA
Husein, A
Hutchinson, GW
Copeman, DB
Title A possible role for Rusa deer (Cervus timorensis russa) and wild pigs in spread of Trypanosoma evansi from Indonesia to Papua New Guinea
Formatted title
A possible role for Rusa deer (Cervus timorensis russa) and wild pigs in spread of Trypanosoma evansi from Indonesia to Papua New Guinea
Journal name Memorias Do Instituto Oswaldo Cruz   Check publisher's open access policy
ISSN 0074-0276
1678-8060
Publication date 1999-03-01
Year available 1999
Sub-type Article (original research)
DOI 10.1590/S0074-02761999000200013
Open Access Status DOI
Volume 94
Issue 2
Start page 195
End page 197
Total pages 3
Place of publication Rio de Janeiro, Brazil
Publisher Fundacao Oswaldo Cruz
Language eng
Formatted abstract
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.
Keyword Trypanosoma evansi
Reservoir hosts
Epidemiology
Pig
Deer
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Public Health Publications
 
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