A four-year summary of air filtration system efficacy for preventing airborne spread of porcine reproductive and respiratory syndrome virus and Mycoplasma hyopneumoniae

A 4-year study evaluated the ability of commercial air filters to protect susceptible populations against airborne transmission of porcine reproductive and respiratory syndrome virus and Mycoplasma hyopneumoniae. All filter types equally reduced the risk of airborne transmission of both pathogens, compared to non-filtered controls, supporting further application in the field.