From the 'Illustrated Manual for the Recognition and Diagnosis of Certain Animal Diseases', published in 1982, by the Mexico-United States Commission for the Prevention of Foot and Mouth Disease, this photograph depicts a domesticated pig that was exhibiting symptoms indicative of African swine fever (ASF), which included marked cyanotic changes in its skin's appearance.
CDC/ Dr. Jerry J. Callis, PIADC/Dr. Brian W.J. Mahy, CDC
December 2, 2012
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