Washington: A vaccine for cattle can slash E. coli levels by more than 50 percent, which is also effective with two doses instead of the recommended three.While E. coli O157:H7 does not affect cattle, it causes food-borne diseases in humans. Vaccines and other products may be given to cattle to help prevent the spread of the bacteria.David Renter, associate professor of epidemiology at Kansas State University, T.G. Nagaraja, an Indian-American professor of microbiology, and other Kansas researchers worked on the project to gauge effectiveness of products used to prevent the shedding of E. coli O157:H7 in cattle, the journal Vaccine reports."We wanted to test how well these products work to control E. coli O157:H7 in a commercial feedlot with a large population of cattle that were fed in the summer and may be expected to have a high level of E. coli O157:H7," Renter said, according to a Kansas statement.
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