Population
Cattle herds and sheep flocks (based on data from challenge experiments)
Design
Other
Authors
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May increase undetected FMD carriers by masking signs if given shortly pre-challenge; leaves open optimal timing strategies pending prospective validation.
Emergency vaccination for foot-and-mouth disease can paradoxically increase the number of undetected carrier animals by masking clinical signs, particularly if applied shortly before challenge.
Schley et al. (2009) studied this question.
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