By Jean-Paul MacDonald
Farms.com
A new study focusing on the pdm09 virus, responsible for the 2009 H1N1 pandemic, has uncovered eye-opening information. Since 2009, pdm09 has been transmitted from humans to swine approximately 370 times, posing significant concerns for managing influenza A infection in individuals working with pigs.
Influenza A is a virus that can cause the flu in humans, birds, swine, and certain other mammals. The pdm09 virus, responsible for the 2009 pandemic that claimed many lives worldwide, has shown a consistent pattern of passing from humans to swine since the pandemic. As the virus circulates among swine, it undergoes evolutionary changes that could enable it to infect humans again.
To gain a deeper understanding of this risk, researchers led by Alexey Markin from the U.S. Department of Agriculture-Agricultural Research Service conducted a detailed analysis of pdm09 transmission data from 2009 to 2021. Their objective was to assess how these interspecies events impacted the genetic diversity of the virus in swine and the potential risk of human infection.