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[Flavivirus: serological survey in horses from the Tandil area].
Abstract: Sera from 282 equines from Tandil country and surroundings were investigated searching for hemagglutination inhibition (HI), Complement fixation (CF), and Neutralizing (NT) antibodies against three flavivirus:Ilheus, St. Louis Encephalitis, and Yellow Fever from the Togaviridae family. Sera were collected between 3-20-79 and 11-25-80 from 10 different places in Tandil and Ayacucho countries. Animals ranged from 45 days to 27 years old. Forty nine of them reacted with one or more flavivirus by HI and/or CF tes representing a prevalence of 17.4% for this antigenic complex. Twenty four of them neutralized ILH, 6 SLE and from them 2 neutralized both viruses. Twenty one cannot be endorsed to ILH or SLE but to some other/s flavivirus present in the environment but not present in the test since they did not neutralize any of them. Other 12 sera with no HI or CF antibodies for any of the three viruses did not neutralize ILH or SLE. Results showed ILH and SLE viruses, both isolated in man during previous years studied in Argentina, to be endemic in the area and to be naturally infecting horses, perhaps without producing detectable disease, since no epizootics due to SLE or ILH viruses were reported on the horse population investigated.
Publication Date: 1985-01-01 PubMed ID: 2829272 The Equine Research Bank provides access to a large database of publicly available scientific literature. Inclusion in the Research Bank does not imply endorsement of study methods or findings by Mad Barn.
- English Abstract
- Journal Article
- Research Support
- Non-U.S. Gov't
Summary
This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.
The research conducted serological tests on horses in the Tandil area to determine the prevalence of three Flavivirus: Ilheus, St. Louis Encephalitis, and Yellow Fever. The study found that 17.4% of the tested horses reacted to at least one Flavivirus and suggested that these viruses were endemic in the area, but possibly not causing detectable disease.
Research Methodology
- The researchers collected sera from 282 horses around the Tandil and Ayacucho area. The horse population ranged in age from 45 days to 27 years old.
- The collected sera were tested for the presence of three flaviviruses: Ilheus, St. Louis Encephalitis, and Yellow Fever. These viruses are part of the Togaviridae family.
- The tests used were hemagglutination inhibition (HI), Complement fixation (CF), and Neutralizing (NT) antibodies. These tests are designed to detect the presence of specific antibodies in the blood that are produced in response to an infection with these viruses.
Research Findings
- Out of the 282 horses tested, the sera of 49 horses reacted to one or more of the flaviviruses through the HI and/or CF tests. This showed a prevalence of 17.4% for these diseases.
- From the 49 reacting sera, 24 neutralized the Ilheus virus, 6 neutralized St. Louis Encephalitis, and 2 neutralized both. This means that these horses had been exposed to these viruses and their immune systems had produced suitable antibodies to combat the infection.
- Twenty one sera could not be associated to either Ilheus or St. Louis Encephalitis but to some other flavivirus present in the environment as they did not neutralize any of the tested viruses. Additionally, 12 sera, which had no detectable HI or CF antibodies for any of the three viruses, did not neutralize either Ilheus or St. Louis Encephalitis.
Conclusion and Implications
- The results demonstrated that both Ilheus and St. Louis Encephalitis are endemic in the Tandil area. This means that these infections are consistently found among the horse population in this region.
- Interestingly, these infections seemed to be occurring without causing detectable disease. There were no reported epizootics, or outbreaks of disease, in the horse population due to Ilheus or St. Louis Encephalitis.
- This research might suggest that the horse population has developed a level of immunity to these flaviviruses. Further research could investigate this possibility and its implications for disease control and vaccination strategies.
Cite This Article
APA
Mettler NE, Fernández AS, Di Santo MI, Pardo DA.
(1985).
[Flavivirus: serological survey in horses from the Tandil area].
Rev Argent Microbiol, 17(1), 47-49.
Publication
Researcher Affiliations
- Cátedra de Virología, Facultad de Ciencias Veterinarias, Universidad Nacional del Centro de la Provincia de Buenos Aires, Tandil, Argentina.
MeSH Terms
- Animals
- Antibodies, Viral / analysis
- Argentina
- Disease Reservoirs
- Flavivirus / immunology
- Flavivirus / isolation & purification
- Horse Diseases / epidemiology
- Horse Diseases / microbiology
- Horses / microbiology
- Togaviridae Infections / epidemiology
- Togaviridae Infections / microbiology
- Togaviridae Infections / veterinary
Citations
This article has been cited 3 times.- Plante JA, Plante KS, Popov VL, Shinde DP, Widen SG, Buenemann M, Nogueira ML, Vasilakis N. Morphologic and Genetic Characterization of Ilheus Virus, a Potential Emergent Flavivirus in the Americas. Viruses 2023 Jan 10;15(1).
- Milhim BHGA, Estofolete CF, Rocha LCD, Liso E, Brienze VMS, Vasilakis N, Terzian ACB, Nogueira ML. Fatal Outcome of Ilheus Virus in the Cerebrospinal Fluid of a Patient Diagnosed with Encephalitis. Viruses 2020 Aug 29;12(9).
- Plante KS, Plante JA, Azar SR, Shinde DP, Scharton D, Versiani AF, Oliveira da Silva NI, Strange T, Sacchetto L, Fokam EB, Rossi SL, Weaver SC, Marques RE, Nogueira ML, Vasilakis N. Potential of Ilhéus virus to emerge. Heliyon 2024 Mar 30;10(6):e27934.
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