In the USA the PRRS implies a cost of:
See a clue in the article Introduction, dissemination and perpetuation of PRRS virus in a region
Questions
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08-Jan-2013 The PCV2 is excreted through: 40% correct
31-Dec-2012 Since the first description of the PCV2 in 1998, the presence of this virus has been demonstrated in: 36% correct
24-Dec-2012 The first "wasting" outbreaks were diagnosed in: 34% correct
Random questions
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Easy questions
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Difficult questions
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