TRYPNET. New hemoparasite information network.

Although Guyana, Suriname, and French Guiana share borders and climatic and geographic similarities, the countries have maintained little contact, due to language, political, and administrative differences. In 1993, two international organizations involved in the improvement of animal health, the Inter-American Institute for Cooperation on Agriculture (IICA) and CIRAD-EMVT (Centre de Cooperation Internationale en Recherche Agronomique pour le Developpement-Elevage et Medecine Veterinaire des Pays Tropicaux), jointly developed a collaborative project between the veterinary services of the three countries entitled "Hemoparasite Network for the Guianas." This project seeks to pool livestock, laboratory, and technical resources between the three countries in order to generate and exchange information on hemoparasites of livestock. A Hemoparasite Reference Laboratory for the Guianas has been created at the CIRAD-EMVT laboratory in Cayenne, French Guiana. Besides processing ruminant serum samples from the three countries, specialists from this organization conduct training in hemoparasite diagnostic techniques for laboratory personnel from Guyana and Suriname. A large-scale epidemiologic study of hemoparasites of cattle in the three countries is under way, to determine the prevalence, distribution, and clinical and economic significance of hemoparasites in the three countries, particularly Trypanosoma vivax and T. evansi. Preliminary results are presented and discussed. A Hemoparasite Information Network (TRYPNET) has been initiated, including a quarterly hemoparasite newsletter (TRYPNEWS), published in English and Spanish and disseminated to researchers in the Americas, Europe, and Africa. In 1995/96, it is proposed to expand the network's scope to include Venezuela and Brazil.

TRYPNET: new hemoparasite information network

Although Guyana, Suriname and French Guiana share borders and climatic and geographic similarities, the countries have maintained little contact, due to language, political, and administrative differences. In 1993, two international organizations involved in the improvement of animal health, the Inter-American Institute for Cooperation on Agriculture (IICA) and CIRAD-EMVT (Centre de Cooperation en Recherche Agronomique pour le Developement-Elevage et Medicine Veterinaire des Pays Tropicaux), jointly developed a collaborative project between the veterinary services of the three countries entitled Hemoparsite Network of the Guianas. This project seeks to pool livestock, laboratory, and technical resources between the three countries in order to generate and exchange information on hemoparasites of livestock. A Hemoparasite Reference Laboratory for the Guianas has been created at the CIRAD-EMVT laboratory in Cayenne, French Guiana. Besides processing ruminant serum samples for the three countries, specialists from this organization conduct training in hemoparasite diagnostic techniques for laboratory personnel from Guyana and Suriname. A large-scale epidemiologic study of cattle in the three countries is under way, to determine the prevalence, distribution, and clinical and economic significance of hemoparasites in the three countries, particularly Trypanosoma vivax and T. envansi. Preliminary results are presented and discussed. A hemoparasite information Network (TRYPNET) has been initiated, including a quarterly hemoparasite newsletter (TRYPNEWS), published in English and Spanish and disseminated to researchers in the Americas, Europe, and Africa. In 1995/96, it is proposed to expand the network's scope to include Venezuela and Brazil. (AU)

Epidemiologia de las enfermedades del ganado bovino en Suriname / Epidemiology of cattle diseases in Suriname

The prevalence of certain cattle diseases in Suriname was studied over the period June-August 1985. The diseases were selected for their economic importance and association observed in the cattle with respiratory diseases, reproductive inefficiency, and neonatal mortality. Random samples were taken at two cattle-raising ranches, a dairy farm, and an abattoir in the District of Suriname. The study included a total of 478 animals, which were tested by indirect immunofluorescence for each of the diseases selected. Basically the serologic study revealed the presence of brucellosis, bovine viral diarrhea, parainfluenza 3, bovine infectious rhinotracheitis, and bovine coronavirus but not respiratory syncytial virus. The prevalence of parainfluenza 3 and bovine viral diarrhea was low compared with rates in other countries. It is recommended that a system, specially designed to meet the needs of this country, be established for the ongoing surveillance of data on animal health

Epidemiologic survey of bovine diseases in Suriname.

A seroepidemiologic survey of cattle diseases was undertaken in Suriname in 1985 to help assess the livestock disease situation in that country. The six diseases covered by the survey were bovine coronavirus infection, bovine rhinotracheitis, bovine virus diarrhea, brucellosis, parainfluenza-3 infection, and respiratory syncytial virus infection. The results indicated relatively low prevalences of these diseases compared to the prevalences found in most developed countries. The reasons for this are uncertain, but the finding suggests that the cattle population in Suriname could lack extensive exposure to these diseases and so could be highly susceptible to them. In addition, the evident need for more thoroughgoing survey data points up the need to establish a continuous animal data health monitoring system in Suriname--as well as in other developing countries where there is a need to objectively assess the livestock disease picture.

In vitro synthesis of immunoglobulins in cutaneous leishmaniasis.

In an in vitro study, IgG was synthesized in large amounts by tissue from cutaneous leishmaniasis lesions. IgA and IgM were produced in the minority of the cultures in distinct and small amounts, respectively. Synthesis of complement (C3 and C4) could not be detected, but lysozyme was produced sporadically. The significance of these findings is discussed.

Dirofilaria in dogs of Surinam

Five hundred and twenty-one dogs, at least one year of age, visiting a private veterinary clinic in Paramaribo, were examined from August 1977 till August 1978. Twenty-six per cent had microfilariae of Dirofilaria immitis in their peripheral blood. The mean number per infected dog was 9.689 per ml of blood (range 14 to 78.984 per ml). Microfilaria positivity rates were significantly higher in older dogs, and there were significantly more abnormal SGPT values in positive than in negative dogs, but there were no significant associations between positivity rate and alcalic phosphatase, ureum, or creatinin values, presence of clinical symptoms, presence of antibodies to Dirofilaria immitis (measured by the direct immuno fluoroscent antibody test), sex, breed nor neighbourhood of the dogs.(AU)

Epidemiologia de las enfermedades del ganado bovino en Suriname / Epidemiology of cattle diseases in Suriname

The prevalence of certain cattle diseases in Suriname was studied over the period June-August 1985. The diseases were selected for their economic importance and association observed in the cattle with respiratory diseases, reproductive inefficiency, and neonatal mortality. Random samples were taken at two cattle-raising ranches, a dairy farm, and an abattoir in the District of Suriname. The study included a total of 478 animals, which were tested by indirect immunofluorescence for each of the diseases selected. Basically the serologic study revealed the presence of brucellosis, bovine viral diarrhea, parainfluenza 3, bovine infectious rhinotracheitis, and bovine coronavirus but not respiratory syncytial virus. The prevalence of parainfluenza 3 and bovine viral diarrhea was low compared with rates in other countries. It is recommended that a system, specially designed to meet the needs of this country, be established for the ongoing surveillance of data on animal health