Advice to Keep the Public Healthy While Visiting Agricultural Fairs –
Measures to Minimize Influenza Transmission at Swine Exhibitions
Pigs can be infected with human, swine and avian origin influenza A viruses. While rare, influenza A viruses
can spread from pigs to people and from people to pigs. Transmission usually requires close contact between
pigs and people, which can happen at livestock exhibitions and shows.
When people are infected with swine origin influenza A viruses, it is termed as a variant virus infection and
denoted with a “v” after the subtype (e.g. H3N2v). In the past several years, cases of influenza A H1N1v,
H1N2v and H3N2v have been associated with swine exhibitions. In July 2017, eleven cases of H3N2v and
one case of H1N2v, all with reported exposure to swine in a fair setting, were reported from Ohio. Since
December 2005, 384 human cases infected with H3N2v were reported from 19 states.
While no cases have been reported at this time in New Jersey, the New Jersey Department of Health
(NJDOH) wants to remind everyone of the steps they can take to enjoy their local agricultural fair while