| Autor: |
Rivera-Benitez, José Francisco, De la Luz-Armendáriz, Jazmín, Martínez Bautista, Rebeca, Camas-Pereyra, René, Diosdado Vargas, Fernando, Pérez, Héctor, Martínez Mercado, María José, Galindo, Barboza Jorge |
| Předmět: |
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| Zdroj: |
Veterinaria México OA; 2024 Special Issue, Vol. 11, p87-87, 1p |
| Abstrakt: |
A convenience-directed study was conducted in swine farms. Nasal swab samples and oral fluids (n = 172) were collected from pigs in 13 farms with a clinical history of respiratory illness associated with swine influenza virus. Five individual serum samples were collected from the production line (3-21 weeks of age). 4 positive farms were identified in nasal swab samples (5/33.15 %), two farms in oral fluid samples (2/7.28 %) by real-time RT-PCR. Sequencing allowed the identification of two main subtypes, H3N1 and H3N2. In all cases, the sequences obtained from HA correspond to subtypes of porcine origin, identified in North America or the USA; for NA, four sequences obtained are of porcine origin and two from viruses identified as human influenza; the samples correspond to Mexican strains or from USA. In relation to the detection of antibodies, positivity was identified in all the analyzed farms, however, there were negative individuals or individuals with low titers. The highest average titers for the H1N1 subtype were identified between weeks 12 and 18. In the case of the H3N2 subtype, the highest mean titer was at week 6 and 9. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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