Ventilation does not spread MRSA outside pig houses


Anne-Marie van der Linde, Pig Progress

Jul 16, 2021


Danish researchers put ventilation to the test in an attempt to see if methicillin-resistant Staphylococcus aureus (MRSA) could also spread outside pig houses.


The airborne spread of livestock-associated MRSA (LA-MRSA) through pig house ventilation hardly appears to be a source of infection for people outside the pig houses. That was the conclusion of recent Danish research, conducted by scientists from the Statens Serum Institut, the Technical University of Denmark as well as Aarhus University. The study was published in the peer-reviewed magazine Frontiers in Veterinary Science.


Air samples from ventilation systems


MRSA spread among pig producers and farm employees is being considered a risk when working with pigs. The Danish scientists researched whether or not MRSA could also spread outside the pig houses via ventilation systems. Between October and December 2018, the team took air samples from the ventilation system’s outlets as well as the farm’s surroundings. They compared the results with meteorological data, the pig house’s own bacteriological air samples, soil around the farm as well as nasal samples from individuals participating in the sampling.


Limited spread of MRSA ...


Airborne spread of MRSA is not an important route ... 


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