Detection of haemagglutination-inhibiting antibodies against human H1 and H3 strains of influenza A viruses in pigs in Ibadan, Nigeria

Zoonoses and Public Health
O A AdeolaBabasola O Olugasa

Abstract

Agricultural and commercial activities have continued to bring people and pigs into regular, close contact in Ibadan, Nigeria. This study was therefore designed to investigate the transmission of human influenza viruses to pigs in Ibadan, using serological surveillance. Serum specimens were collected from ninety-one (91/199) apparently healthy, unvaccinated Landrace pigs at three locations within Ibadan from April to June, 2008. Two strains of human influenza virus A: A/Brisbane/59/2007 (H1N1) and A/Brisbane/10/2007 (H3N2) were used in Haemagglutination-Inhibition Assay for antibody detection. Prevalence of HI antibodies to the two subtypes was 90.1%. Antibodies to influenza A/Brisbane/59/2007 (H1N1) were significantly (P < 0.05) more prevalent (80.2%) than those of influenza A/Brisbane/10/2007 (H3N2) (51.6%). Titres of HI antibodies to influenza A/Brisbane/59/2007 [mean = 3331.5] were significantly higher (P < 0.05) than those of influenza A/Brisbane/10/2007 [mean = 2212.3]. This study shows that these pigs were exposed to human strains of influenza A(H1N1) and A(H3N2) either prior to or during this study. The implications of these high prevalence and antibody titres are discussed in relation to influenza virus infection among...Continue Reading

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Citations

Nov 3, 2012·Therapeutic Delivery·Jie WuGuang-Hui Ma
Jan 30, 2015·Veterinary Microbiology·Chantal J SnoeckClaude P Muller
Mar 18, 2015·Veterinary Microbiology·Mariette F DucatezRichard J Webby
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Aug 2, 2013·Memórias do Instituto Oswaldo Cruz·Ariane Ribeiro AmorimNorma Suely de Oliveira Santos

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