University of PittsburghJun 28 2024
"Dairy cows have to be milked even if they are sick, and it has not been clear for how long the virus contained in residual milk from the milking process remains stable on the equipment," said lead author Valerie Le Sage, Ph.D., research assistant professor of microbiology and molecular genetics at the Center for Vaccine Research at Pitt.
To understand the potential for spread from cattle to dairy farm workers, researchers looked at the stability of infectious flu virus particles in unpasteurized milk droplets on metal and rubber components of commercial milking equipment. Our data supports that milking equipment surfaces can stay contaminated for a long time, increasing the potential spread from a sick animal to a person. These findings underscore the importance of face shields, masks and eye protection, and enhanced sanitization of equipment between cows to reduce the risk to workers and to minimize the spread between the animals."
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