A small town experiences an outbreak associated with Salmonella isolated from ho

Question

A small town experiences an outbreak associated with Salmonella isolated from homemade peanut butter. The PFGE result of the outbreak strain is shown in the first lane. The other lanes show PFGE results of Salmonella isolated from peanuts grown at local farms. Which isolate is the likely source of the contaminated peanut butter? solate isolate isolate solate isolate 2 3 4 5 600 kilobases 500 kilobases 400 kilobases 200 kilobases 100 kilobases 75 kilobases Isolate 1 Isolate2 Isolate 3 Isolate 4 Isolate 5

Explanation / Answer

isolate 3

Isolate 3 is the likely source of the contaminated peanut butter. The PFGE results of the isolate 3 matches with the PFGE results of the outbreak strain, which is shown in the first lane.

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