AI Article Synopsis
- There is currently no European legislation mandating quarantine for imported animals, leading to the direct introduction of potentially infected animals into existing herds.
- A study found that healthy mouflons, initially diagnosed as paratuberculosis-free, shed Mycobacterium avium subsp. paratuberculosis (MAP) after transport to a new farm, even during a twelve-day quarantine.
- The findings suggest that stress from transport and a new environment may trigger latent infections, highlighting the need for stricter quarantine protocols and post-transport testing for imported animals.
Article Abstract
There is no European legislation concerning paratuberculosis that requires that imported animals be kept in quarantine and commonly they are directly released into areas with other animals. In this study, detection of latent infection of paratuberculosis in healthy mouflons previously diagnosed as paratuberculosis-free, but originating from a real time quantitative PCR- (qPCR-) positive herd, occurred after their transport to a new farm. During a twelve-day quarantine period, all mouflons irregularly shed Mycobacterium avium subsp. paratuberculosis (MAP) in faeces, and in a small number of cases also in milk. After the animals were released from quarantine, MAP was detected for a further two days, after which, testing was negative, except in one case. Therefore, the stress connected with transport, novel environment, dietary change, or limited area with high density of animals might have contributed to the induction of paratuberculosis and the shedding of MAP from the animals, previously diagnosed as MAP-negative. According to these results, the keeping of imported animals in quarantine and their examination for MAP presence not only before the transport but also afterwards should be recommended. The designation of a particular area of a farm as a quarantine enclosure could help to mitigate the impact of stress caused by a confined space with a high density of animals.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3960726 | PMC |
| http://dx.doi.org/10.1155/2014/450130 | DOI Listing |
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