he Influenza A virus The virus has jumped from humans to pigs about 370 times since 2009, a study of the strain Influenza A responsible for the pandemic Influenza A (H1N1) From 2009 (Data Management 09).The study was published in the journal PLOS Pathogensit is also believed that subsequent circulation in pigs produced the variant Data Management 09 Then jump from pig to man.
this Influenza A It can cause influenza in humans, birds, pigs, and some other mammals. In 2009 and 2010, Pandemic Caused Data Management 09 Killed thousands of people around the world. Since then, as previous studies have shown, Data Management 09 Multiple transmissions from humans to pigs, and circulation of the virus Virus Evolution among pigs has resulted in Data Management 09 This may have made it more likely that it would hybridize again and infect humans.
To better understand this risk, Alexei Makinof USDA Agricultural Research Serviceand their colleagues analyzed the Data Management 09 Between 2009 and 2021.They also investigated how these interspecific events affected the species’ genetic diversity Virus Risk of infection in pigs and subsequently in humans.
Since 2009, pdm09 has been transmitted from humans to pigs approximately 370 times, with most of these events occurring when the pdm09 burden in humans was highest
Analysis shows that since 2009, Data Management 09 has passed from humans to pigs about 370 times, most of which occurred in Data Management 09 It is higher in humans. In 2020 and 2021, during the Covid-19 pandemic, Data Management 09 The circulation between people is reduced, Data Management 09 Between 2018 and 2020, the virus persisted in pig herds, resulting in about 150 cases of human-to-pig transmission.
The researchers found that most human-to-pig events were isolated, but a few also resulted in continuous cycles of different genetic lineages. Data Management 09 in pigs USA. These variations in the pig cycle appear to be less heritable for pigs. seasonal vaccinations humans, suggesting that the vaccine offered them little protection.The analysis also showed that the continuous cycle Data Management 09 Transmission between pigs has been linked to at least five cases of pig-to-human transmission.
These results provide further evidence that infection is controlled by: Influenza A People who work with pigs can help prevent transmission to pigs, thereby reducing the risk of transmission to humans.
“To control the infection of the virus Influenza A Can minimize transmission in humans Virus Reduce pig diversity Virus The authors warn that the virus is circulating in pig herds.limit diversity Virus In pigs, it minimizes the emergence of new Virus and the potential to spread Virus of Influenza A From pig to man”.