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PRESENCE OF RESPIRATORY VIRUSES IN EQUINES IN BRAZIL
Equines are susceptible to respiratory viruses such as influenza and parainfluenza. Respiratory diseases have adversely impacted economies all over the world. This study was intended to determine the presence of influenza and parainfluenza viruses in unvaccinated horses from some regions of the stat...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Instituto de Medicina Tropical
2014
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4085858/ https://www.ncbi.nlm.nih.gov/pubmed/24878995 http://dx.doi.org/10.1590/S0036-46652014000300002 |
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author | Mancini, Dalva Assunção Portari Pereira, Aparecida Santo Pietro Mendonça, Rita Maria Zucatelli Kawamoto, Adelia Hiroko Nagamori Alves, Rosely Cabette Barbosa Pinto, José Ricardo Mori, Enio Richtzenhain, Leonardo José Mancini-Filho, Jorge |
author_facet | Mancini, Dalva Assunção Portari Pereira, Aparecida Santo Pietro Mendonça, Rita Maria Zucatelli Kawamoto, Adelia Hiroko Nagamori Alves, Rosely Cabette Barbosa Pinto, José Ricardo Mori, Enio Richtzenhain, Leonardo José Mancini-Filho, Jorge |
author_sort | Mancini, Dalva Assunção Portari |
collection | PubMed |
description | Equines are susceptible to respiratory viruses such as influenza and parainfluenza. Respiratory diseases have adversely impacted economies all over the world. This study was intended to determine the presence of influenza and parainfluenza viruses in unvaccinated horses from some regions of the state of São Paulo, Brazil. Blood serum collected from 72 equines of different towns in this state was tested by hemagglutination inhibition test to detect antibodies for both viruses using the corresponding antigens. About 98.6% (71) and 97.2% (70) of the equines responded with antibody protective titers (≥ 80 HIU/25µL) H(7)N(7) and H(3)N(8) subtypes of influenza A viruses, respectively. All horses (72) also responded with protective titers (≥ 80) HIU/25µL against the parainfluenza virus. The difference between mean antibody titers to H(7)N(7) and H(3)N(8) subtypes of influenza A viruses was not statistically significant (p > 0.05). The mean titers for influenza and parainfluenza viruses, on the other hand, showed a statistically significant difference (p < 0.001). These results indicate a better antibody response from equines to parainfluenza 3 virus than to the equine influenza viruses. No statistically significant differences in the responses against H(7)N(7) and H(3)N(8) subtypes of influenza A and parainfluenza 3 viruses were observed according to the gender (female, male) or the age (≤ 2 to 20 years-old) groups. This study provides evidence of the concomitant presence of two subtypes of the equine influenza A (H(7)N(7) and H(3)N(8)) viruses and the parainfluenza 3 virus in equines in Brazil. Thus, it is advisable to vaccinate equines against these respiratory viruses. |
format | Online Article Text |
id | pubmed-4085858 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Instituto de Medicina Tropical |
record_format | MEDLINE/PubMed |
spelling | pubmed-40858582014-07-16 PRESENCE OF RESPIRATORY VIRUSES IN EQUINES IN BRAZIL Mancini, Dalva Assunção Portari Pereira, Aparecida Santo Pietro Mendonça, Rita Maria Zucatelli Kawamoto, Adelia Hiroko Nagamori Alves, Rosely Cabette Barbosa Pinto, José Ricardo Mori, Enio Richtzenhain, Leonardo José Mancini-Filho, Jorge Rev Inst Med Trop Sao Paulo Virology Equines are susceptible to respiratory viruses such as influenza and parainfluenza. Respiratory diseases have adversely impacted economies all over the world. This study was intended to determine the presence of influenza and parainfluenza viruses in unvaccinated horses from some regions of the state of São Paulo, Brazil. Blood serum collected from 72 equines of different towns in this state was tested by hemagglutination inhibition test to detect antibodies for both viruses using the corresponding antigens. About 98.6% (71) and 97.2% (70) of the equines responded with antibody protective titers (≥ 80 HIU/25µL) H(7)N(7) and H(3)N(8) subtypes of influenza A viruses, respectively. All horses (72) also responded with protective titers (≥ 80) HIU/25µL against the parainfluenza virus. The difference between mean antibody titers to H(7)N(7) and H(3)N(8) subtypes of influenza A viruses was not statistically significant (p > 0.05). The mean titers for influenza and parainfluenza viruses, on the other hand, showed a statistically significant difference (p < 0.001). These results indicate a better antibody response from equines to parainfluenza 3 virus than to the equine influenza viruses. No statistically significant differences in the responses against H(7)N(7) and H(3)N(8) subtypes of influenza A and parainfluenza 3 viruses were observed according to the gender (female, male) or the age (≤ 2 to 20 years-old) groups. This study provides evidence of the concomitant presence of two subtypes of the equine influenza A (H(7)N(7) and H(3)N(8)) viruses and the parainfluenza 3 virus in equines in Brazil. Thus, it is advisable to vaccinate equines against these respiratory viruses. Instituto de Medicina Tropical 2014 /pmc/articles/PMC4085858/ /pubmed/24878995 http://dx.doi.org/10.1590/S0036-46652014000300002 Text en http://creativecommons.org/licenses/by-nc/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Virology Mancini, Dalva Assunção Portari Pereira, Aparecida Santo Pietro Mendonça, Rita Maria Zucatelli Kawamoto, Adelia Hiroko Nagamori Alves, Rosely Cabette Barbosa Pinto, José Ricardo Mori, Enio Richtzenhain, Leonardo José Mancini-Filho, Jorge PRESENCE OF RESPIRATORY VIRUSES IN EQUINES IN BRAZIL |
title | PRESENCE OF RESPIRATORY VIRUSES IN EQUINES IN BRAZIL |
title_full | PRESENCE OF RESPIRATORY VIRUSES IN EQUINES IN BRAZIL |
title_fullStr | PRESENCE OF RESPIRATORY VIRUSES IN EQUINES IN BRAZIL |
title_full_unstemmed | PRESENCE OF RESPIRATORY VIRUSES IN EQUINES IN BRAZIL |
title_short | PRESENCE OF RESPIRATORY VIRUSES IN EQUINES IN BRAZIL |
title_sort | presence of respiratory viruses in equines in brazil |
topic | Virology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4085858/ https://www.ncbi.nlm.nih.gov/pubmed/24878995 http://dx.doi.org/10.1590/S0036-46652014000300002 |
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