The CDC and state health officials are investigating potential exposures to Brucella RB51 strain in 19 states, linked to consumption of raw (unpasteurized) milk from Miller's Biodiversity Farm in Quarryville, Pennsylvania. A case of RB51 (brucellosis) infection was confirmed in New York City in November 2018 and an unknown number of people may have been exposed to RB51 after drinking milk from this farm. A cow tested positive for RB51 was removed from the dairy herd.

On January 22, 2019, investigators determined that residents of 19 states had purchased or consumed raw milk from the farm. The states are Alabama, California, Connecticut, Florida, Georgia, Iowa, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, New Jersey, the United States. New York State, North Carolina, Ohio, Pennsylvania, South Carolina and Virginia.

People who have consumed raw milk or raw milk products from this dairy farm since January 2016 may have been exposed and should talk to their doctor. People who are still within six months of the last intake of raw milk are at increased risk of brucellosis and should be given antibiotics to prevent infection and symptoms, and should monitor their health for six months. If symptoms occur, they should immediately consult their doctor. People who have been drinking raw milk from this dairy for the last time more than six months ago and who have symptoms of brucellosis – but which have not been treated – should immediately consult their doctor for testing to determine if they are infected and if they need antibiotics to prevent long-term health problems. caused by brucellosis.

Consumers should dispose of the remainder or storage of raw milk or raw milk products from this dairy farm.

Additional details can be found here: Exposures to Drug-Resistant Brucellosis Linked to Raw Milk