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Castro Filho RPL, Torres ACD, Marin SY, Diniz SA, Matos JCC, Mureb EN, Resende M, Martins NRS. Serological Diagnosis of Influenza A Subtype H1 on Family Poultry of Belo Horizonte, Minas Gerais and Santa Maria, Rio Grande Do Sul, in Brazil. BRAZILIAN JOURNAL OF POULTRY SCIENCE 2018. [DOI: 10.1590/1806-9061-2017-0709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | - ACD Torres
- Universidade Federal de Minas Gerais, Brazil
| | - SY Marin
- Universidade Federal de Minas Gerais, Brazil
| | - SA Diniz
- Universidade Federal de Minas Gerais, Brazil
| | - JCC Matos
- Universidade Federal de Minas Gerais, Brazil
| | - EN Mureb
- Universidade Federal de Minas Gerais, Brazil
| | - M Resende
- Universidade Federal de Minas Gerais, Brazil
| | - NRS Martins
- Universidade Federal de Minas Gerais, Brazil
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Fornells LAMG, Travassos CEPF, Costa CM, Novelli R, Petrucci MP, Soffiati FL, Bianchi I, de Souza LFL, Veiga VF, Liberal MHT, Couceiro JNSS. Detection of avian paramyxoviruses in migratory and resident birds in the state of Rio de Janeiro, Brazil. Avian Dis 2014; 57:780-4. [PMID: 24597121 DOI: 10.1637/10548-040813-resnote.1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Paramyxoviruses and avian influenza viruses are present worldwide, and wild birds are known natural reservoirs of these viruses. This study monitored the circulation of these viruses in migratory and resident coastal birds captured in the state of Rio de Janeiro, Brazil. In total, 494 birds were trapped, and their fecal samples were collected and inoculated into embryonated chicken eggs. The allantoic fluids were evaluated using a hemagglutination test and PCR amplification of the genes of the M and L proteins of influenza A virus and paramyxovirus, respectively. Avian paramyxovirus was detected in 5 (1.01%) of the birds. The majority of these viruses were isolated from migratory birds classified into the order Charadriiformes (families Scolopacidae and Charadriidae). Four samples were characterized as avian paramyxovirus serotype-2 (APMV-2) by a hemagglutination inhibition test. These results reinforce the importance of continuous surveillance of wild species in Brazil.
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Affiliation(s)
- Luz Alba M G Fornells
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Centro de Ciências da Saúde, Cidade Universitaria, Avenida Carlos Chagas Filho, 373, 21941-902, Rio de Janeiro, RJ, Brazil
| | - Carlos E P F Travassos
- Laboratório de Sanidade Animal, Universidade Estadual do Norte Fluminense, Avenida Alberto Lamego, 2000, Horto, 28015-620, Campos dos Goytacazes, RJ, Brazil
| | - Claudia M Costa
- Laboratório de Sanidade Animal, Universidade Estadual do Norte Fluminense, Avenida Alberto Lamego, 2000, Horto, 28015-620, Campos dos Goytacazes, RJ, Brazil
| | - Ronaldo Novelli
- Laboratório de Sanidade Animal, Universidade Estadual do Norte Fluminense, Avenida Alberto Lamego, 2000, Horto, 28015-620, Campos dos Goytacazes, RJ, Brazil
| | - Melissa P Petrucci
- Laboratório de Sanidade Animal, Universidade Estadual do Norte Fluminense, Avenida Alberto Lamego, 2000, Horto, 28015-620, Campos dos Goytacazes, RJ, Brazil
| | - Flavio L Soffiati
- Laboratório de Sanidade Animal, Universidade Estadual do Norte Fluminense, Avenida Alberto Lamego, 2000, Horto, 28015-620, Campos dos Goytacazes, RJ, Brazil
| | - Iliani Bianchi
- Laboratório de Sanidade Animal, Universidade Estadual do Norte Fluminense, Avenida Alberto Lamego, 2000, Horto, 28015-620, Campos dos Goytacazes, RJ, Brazil
| | - Luiz F Lino de Souza
- Laboratório de Sanidade Animal, Universidade Estadual do Norte Fluminense, Avenida Alberto Lamego, 2000, Horto, 28015-620, Campos dos Goytacazes, RJ, Brazil
| | - Venício F Veiga
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Centro de Ciências da Saúde, Cidade Universitaria, Avenida Carlos Chagas Filho, 373, 21941-902, Rio de Janeiro, RJ, Brazil
| | - Maíra H T Liberal
- Laboratório de Biologia Animal-Setor de Biotecnologia, Empresa de Pesquisa do Estado do Rio de Janeiro, Alameda São Boaventura, 770, Pesagro, Fonseca, 24120-191, Niterói, RJ, Brazil
| | - José Nelson S S Couceiro
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Centro de Ciências da Saúde, Cidade Universitaria, Avenida Carlos Chagas Filho, 373, 21941-902, Rio de Janeiro, RJ, Brazil
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Sousa ED, Costa TP, Werther K, Durigon EL, Araujo JD, Ferreira CS, Pinto AA. Presence of antibodies against H5, H7 and H9 influenza A virus in wild birds in the State of São Paulo, Brazil. BRAZILIAN JOURNAL OF POULTRY SCIENCE 2013. [DOI: 10.1590/s1516-635x2013000300001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
| | - T P Costa
- Universidade Estadual Paulista, Brazil
| | - K Werther
- Universidade Estadual Paulista, Brazil
| | | | | | | | - AA Pinto
- Universidade Estadual Paulista, Brazil
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Serologic response and safety to vaccination against avian influenza using inactivated H5N2 vaccine in zoo birds. J Zoo Wildl Med 2010; 40:731-43. [PMID: 20063820 DOI: 10.1638/2008-0044.1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Due to the spread of the H5N1 highly pathogenic strain of avian influenza virus across Europe, a preventive vaccination occurred in early 2006 among 135 French zoologic institutions. Approximately 25,000 birds were vaccinated with a H5N2 inactivated vaccine. Among them, 4,369 birds were monitored by members of Association Francophone des Vétérinaires de Parc Zoologique regarding safety issues of the vaccination protocol. A total of 1,686 blood samples were collected before the first injection (n = 255), at the time of booster (n = 463), 60 day after the booster (n = 514), and 180 day (n = 229) and 330 day (n = 217) after the initial injection. Thus, sera of 126 species representing 15 different avian orders were tested using the hemagglutinin inhibition assay to evaluate seroconversion and the long-term serologic profile of selected anti-H5 antibody. Safety was considered satisfactory in all orders, and there were no deleterious effects on large-volume injection/body weight ratio. After the second injection, 71% of the birds developed a titer > or =32, with a mean titer of 558. Titers then decreased in all birds, with 42% of the remaining birds having a titer > or =32 at day 180 and only 26% at day 330. Results demonstrated that a booster 42 days after initial vaccination was mandatory to raise the titer above 32, considered to be the protective level in poultry, and to increase the number of seroconverted birds. Differences in the serologic responses among the orders and species of birds were detected and could be linked with the variation of vaccine dose injected per body weight or with species-specific immune response. The protocol for additional campaigns will be adjusted for some bird orders through the increase of injected dose or a half yearly booster to sustain better titers over the year. Vaccination is a useful tool, together with biosecurity, that should always be used as a primary method of preventing and controlling avian influenza outbreaks.
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Ortiz EJ, Kochel TJ, Capuano AW, Setterquist SF, Gray GC. Avian influenza and poultry workers, Peru, 2006. Influenza Other Respir Viruses 2009; 1:65-9. [PMID: 18167521 PMCID: PMC2168588 DOI: 10.1111/j.1750-2659.2007.00009.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Currently numerous countries in Asia, Africa and Europe are encountering highly pathogenic avian influenza (AI) infections in poultry and humans. In the Americas, home of the world's largest poultry exporters, contingency plans are being developed and evaluated in preparation for the arrival of these viral strains. OBJECTIVES With this cross-sectional study, to our knowledge the first in its kind in Central or South America, we sought to learn if Peruvian poultry workers had evidence of previous AI infection and if so, to determine risk factors for infection. METHODS We performed a cross-sectional seroprevalence study among 149 workers on a Peruvian poultry farm (133 exposed to poultry and 17 non-exposed controls), serum samples were tested for human influenza virus exposure using a hemagglutination inhibition (HI) assay. Microneutralization assays were performed on all serum samples to detect antibodies against prototypic avian influenza (AI) strains H4 through H12. RESULTS Using multivariate proportional odds modeling we found that the prevalence of elevated titers against AI viruses was low in both groups, exposed and non-exposed controls. CONCLUSIONS No evidence of previous avian influenza infection among Peruvian poultry workers was found in this first cross-sectional study performed in South America. This first occupational study of AI in Latin America was encouraging, but it likely reflects the sector of poultry production with higher biosecurity.
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Affiliation(s)
- Ernesto J Ortiz
- Center for Emerging Infectious Diseases, Department of Epidemiology, University of Iowa College of Public Health, Iowa City, IA 52241, USA.
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