Understanding which farm factors drive Influenza infection

 

Pig Health Today

via The Pig Site - 9 September 2021 

 

US producers and veterinarians have seen an influx of different types of influenza viruses in the last 10 to 15 years, and that is a major reason why influenza is more difficult to control, said Montserrat Torremorell, DVM, PhD, a professor in veterinary population medicine at the University of Minnesota.

 

“We had the same virus for many years — an H1N1, which is derived from the classic influenza virus,” Torremorell said. “But in the late 1990s and early 2000s, we had the introduction of triple reassorted viruses. Some of the genes in these viruses originate from people or from avian sources, in addition to swine. They started to create more diversity so multiple viruses were circulating at the farm level.”

 

The issues with influenza became even more accentuated with the 2009 H1N1 pandemic virus.

 

“That pandemic virus was introduced into the pigs and confirmed the fact that we were seeing the introduction of more viruses from human origin,” she continued. “Depending on what viruses are circulating in people, we have a higher risk of those viruses being introduced into the pigs, and the dynamics of the infections keep changing.”

 

Use of vaccine in US sow herds ...

 

Future research needs ...

 

The parts are just as important as the whole ...   

 

References ... 

 

more

https://www.thepigsite.com/articles/understanding-which-farm-factors-drive-influenza-infection