Effect of influenza A virus sow vaccination on infection in pigs at weaning: A prospective longitudinal study

Dr. Chamba Pardo and colleagues from the University of Minnesota share results of the implementation of sow vaccination to control influenza infections in pigs at weaning through a special issue article published in Transboundary and Emerging Diseases.

Highlights

  • Sow vaccination against IAV was effective at reducing the number of infected groups of pigs at weaning, and the number of positive nasal swab pools within a group.
  • Both prefarrow or whole herd vaccination protocols, and use of commercial or autogenous inactivated vaccines, yielded significant and similar reduction of IAV infections in pigs at weaning.
  • Sow vaccination can help control IAV infections in pigs at weaning and, thus, minimize transmission to growing pigs and other farms.
Continue reading “Effect of influenza A virus sow vaccination on infection in pigs at weaning: A prospective longitudinal study”

Best of Leman #6: J. Pittman – Control of influenza using custom vaccines in sows: a two-year experience

This is our most popular series on the blog. Once a month, we are sharing with you a presentation given at the Allen D. Leman swine conference, on topics that the swine group found interesting, innovative or that lead to great discussions.

We can find all of the presentations selected from previous conferences on the blog here.

Continue reading “Best of Leman #6: J. Pittman – Control of influenza using custom vaccines in sows: a two-year experience”

How investigating the piglet helps us advance influenza control

Before we start with today’s post, we would like to wish you all the best for this new year. Thank you for your support and for reading us year after year.
So here is to a new decade, always bringing you science-driven solutions!

Weaning-age piglets are responsible for the spread of many diseases, but in the case of influenza, they are also responsible for circulating the virus within the herd. 

Continue reading “How investigating the piglet helps us advance influenza control”

Comparison of individual, group and environmental sampling strategies to conduct influenza surveillance in pigs

In this new scientific publication from Dr. Jorge Garrido, PhD candidate from the Torremorell lab, numerous sampling strategies to monitor influenza were compared. the following individual, litter, and environmental samples were included in the study:

  • Nasal swabs
  • Nasal wipes
  • Oropharyngeal swabs
  • Oral fluids
  • Surface wipes
  • Udder wipes
  • Airborne particle deposition
  • Air
Continue reading “Comparison of individual, group and environmental sampling strategies to conduct influenza surveillance in pigs”

Effect of strain-specific maternally-derived antibodies on influenza A virus infection dynamics in nursery pigs

A new scientific article from the Torremorell lab, about the influence of maternal antibodies on influenza dynamics was published in PLoS ONE.

The study followed 10 cohorts of nursery piglets form a single influenza-positive sow farm and compared influenza dynamics based on the vaccination status of the dam.

Continue reading “Effect of strain-specific maternally-derived antibodies on influenza A virus infection dynamics in nursery pigs”