NDLI: Serological study of influenza viruses in veterinarians working with swine in Mexico

Content Provider	Springer Nature Link
Author	Saavedra Montañez, Manuel Castillo Juárez, Héctor Sánchez Betancourt, Iván Rivera Benitez, José Francisco Ramírez Mendoza, Humberto
Copyright Year	2017
Abstract	Humans and swine are both affected by influenza viruses, and swine are considered a potential source of new influenza viruses. Transmission of influenza viruses across species is well documented. The aim of this study was to evaluate the seroprevalence of different influenza virus subtypes in veterinarians working for the Mexican swine industry, using a hemagglutination inhibition test. All sera tested were collected in July 2011. The data were analysed using a generalized linear model and a linear model to study the possible association of seroprevalence with the age of the veterinarian, vaccination status, and biosecurity level of the farm where they work. The observed seroprevalence was 12.3%, 76.5%, 46.9%, and 11.1% for the human subtypes of pandemic influenza virus (pH1N1), seasonal human influenza virus (hH1N1), the swine subtypes of classical swine influenza virus (swH1N1), and triple-reassortant swine influenza virus (swH3N2), respectively. Statistical analysis indicated that age was associated with hH1N1 seroprevalence (P < 0.05). Similarly, age and vaccination were associated with pH1N1 seroprevalence (P < 0.05). On the other hand, none of the studied factors were associated with swH1N1 and swH3N2 seroprevalence. All of the pH1N1-positive sera were from vaccinated veterinarians, whereas all of those not vaccinated tested negative for this subtype. Our findings suggest that, between the onset of the 2009 pandemic and July 2011, the Mexican veterinarians working in the swine industry did not have immunity to the pH1N1 virus; hence, they would have been at risk for infection with this virus if this subtype had been circulating in swine in Mexico prior to 2011.
Starting Page	1633
Ending Page	1640
Page Count	8
File Format	PDF
ISSN	03048608
Journal	Archives of Virology
Volume Number	162
Issue Number	6
e-ISSN	14328798
Language	English
Publisher	Springer Vienna
Publisher Date	2017-02-23
Publisher Place	Vienna
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Virology Medical Microbiology Infectious Diseases
Content Type	Text
Resource Type	Article
Subject	Virology Medicine

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