What percentage of human tuberculosis cases are attributed to Mycobacterium bovis?

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Multiple Choice

What percentage of human tuberculosis cases are attributed to Mycobacterium bovis?

Explanation:
Most human tuberculosis is caused by Mycobacterium tuberculosis. Mycobacterium bovis can infect people, but it accounts for only a tiny share of cases—typically less than 2%—thanks to pasteurization of milk and control of bovine TB in cattle. In places with unpasteurized dairy and less cattle TB control, the share can be somewhat higher, but globally it remains a small percentage. So the best estimate is under 2%.

Most human tuberculosis is caused by Mycobacterium tuberculosis. Mycobacterium bovis can infect people, but it accounts for only a tiny share of cases—typically less than 2%—thanks to pasteurization of milk and control of bovine TB in cattle. In places with unpasteurized dairy and less cattle TB control, the share can be somewhat higher, but globally it remains a small percentage. So the best estimate is under 2%.

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