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Detection of ASFV in blood samples of contact-exposed pigs. Six pigs (animals 0079, 0080, 0081, 0082, 0083, and 0084) were contact exposed to experimentally infected pigs. The bars represent virus titers expressed as HAD50 per milliliter. PCR results are expressed as positive (+) or negative (−). Asterisks indicate the time of appearance of ASF clinical symptoms.
