A Survey on West Nile and Usutu Viruses in Horses and Birds in Poland.
Abstract: West Nile virus (WNV) and Usutu virus (USUV) are members of the family Flaviviridae which, natural life cycles involve mosquito-bird-mosquito transmission. Both represent emerging viruses in Europe with potential to cause neuroinvasive disease in humans. This study investigates the seroprevalence of serum neutralizing antibodies to WNV and to USUV in birds and in horses in Poland. Antibodies against WNV and USUV were detected in 5 (35.7%) and in 1 (7.14%) of 14 birds and in 62 (15.08%) and in 115 (27.98%) of 411 horses, respectively. Twenty-one WNV serologically positive horses (33.87%) and 67 USUV serologically positive horses (58.26%) did not travel outside Polish borders. Given the high abundance of potentially competent mosquito species in Poland, high populations of horses and different bird species, our findings highlight implementation of active control programs, including monitoring of geographic spread and dynamics of WNV and USUV transmission in both primary and accidental hosts. It is also important to improve public health awareness about the disease these viruses may cause.
Publication Date: 2018-02-17 PubMed ID: 29462983PubMed Central: PMC5850394DOI: 10.3390/v10020087Google Scholar: Lookup
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Summary
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The research article is a study on the prevalence of West Nile Virus (WNV) and Usutu Virus (USUV) in horses and birds in Poland, highlighting the need for active monitoring and control programs due to the high populations of potential hosts and mosquitoes, and raising public health awareness about the diseases these viruses can cause.
Introduction: West Nile and Usutu Virus
- West Nile Virus (WNV) and Usutu Virus (USUV) belong to the family Flaviviridae.
- These viruses have natural life cycles involving transmission from mosquito to bird and back to mosquito.
- Both viruses have emerged as health issues in Europe with the potential to cause neuroinvasive disease in humans.
Method and Findings: The Study on Seroprevalence
- The study investigates the seroprevalence, meaning the level of a pathogen in a population, as measured in blood serum, of these viruses in birds and horses in Poland.
- Serum neutralizing antibodies to WNV and USUV were detected in a number of the animals tested – 5 out of 14 birds and 62 out of 411 horses for WNV, and 1 out of 14 birds and 115 out of 411 horses for USUV.
- Significantly, a number of animals that tested positive, 21 horses for WNV and 67 horses for USUV, had not travelled outside of Poland, suggesting local transmission of these viruses.
Implications and Recommendations: Importance of Control Programs and Public Health Awareness
- Given the abundance of mosquito species potentially capable of transmitting these viruses in Poland, along with high populations of horses and different bird species, these findings highlight the need for control programs.
- Such programs should include monitoring of the geographic spread and dynamics of WNV and USUV transmission in both primary hosts (birds) and accidental hosts (horses).
- Moreover, it is important to raise public health awareness about the diseases these viruses can induce, potentially preventing the spread if caught and treated promptly.
Cite This Article
APA
Bażanów B, Jansen van Vuren P, Szymański P, Stygar D, Frącka A, Twardoń J, Kozdrowski R, Pawęska JT.
(2018).
A Survey on West Nile and Usutu Viruses in Horses and Birds in Poland.
Viruses, 10(2), 87.
https://doi.org/10.3390/v10020087 Publication
Researcher Affiliations
- Department of Pathology, Wrocław University of Environmental and Life Sciences, Wroclaw 50-375, Poland. barbara.bazanow@upwr.edu.pl.
- National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg 2131, South Africa. petrusv@nicd.ac.za.
- Faculty of Health Sciences, University of Pretoria, Pretoria 0002, South Africa. petrusv@nicd.ac.za.
- The Wild Animal and Bird of Prey Breeding and Protection Center (ZYS Foundation), Wroclaw 54-530, Poland. p.szymanski.saker@interia.pl.
- Department of Physiology, School of Medicine with Dentistry Division in Zabrze, Medical University of Silesia, Katowice 40-055, Poland. dstygar@sum.edu.pl.
- Department of Pathology, Wrocław University of Environmental and Life Sciences, Wroclaw 50-375, Poland. agnieszkafracka@gmail.com.
- Department of Reproduction and Clinic of Farm Animals, University of Environmental and Life Sciences, Wroclaw 50-375, Poland. jan.twardon@upwr.edu.pl.
- Department of Reproduction and Clinic of Farm Animals, University of Environmental and Life Sciences, Wroclaw 50-375, Poland. roland.kozdrowski@upwr.edu.pl.
- National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg 2131, South Africa. januszp@nicd.ac.za.
- Faculty of Health Sciences, University of Pretoria, Pretoria 0002, South Africa. januszp@nicd.ac.za.
MeSH Terms
- Animals
- Bird Diseases / epidemiology
- Bird Diseases / immunology
- Bird Diseases / virology
- Child, Preschool
- Horse Diseases / epidemiology
- Horse Diseases / immunology
- Horse Diseases / virology
- Horses
- Humans
- Poland / epidemiology
- Seroepidemiologic Studies
- West Nile Fever / veterinary
- West Nile virus / immunology
Conflict of Interest Statement
The authors declare no conflict of interest.
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