Foodborne Illness -- United States
RB51 is a weakened strain of _B. abortus_ used to vaccinate young female cattle against infection with more serious strains of _Brucella_. Vaccinating cows with the RB51 vaccine helps prevent abortions in cows and reduces the risk of people coming into contact with cows infected with more severe strains. However, in rare cases, vaccinated cows can shed RB51 in their milk.
Testing of milk from the individual cows in the dairy herd revealed 2 cows that were infected with _B. abortus_ RB51,
Read more about it at HealthMap Global Disease Alerts via http://bit.ly/2hFtSk7
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