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Shedding patterns of dairy calves experimentally infected with Mycobacterium avium subspecies paratuberculosis

Overview of attention for article published in Veterinary Research, August 2014
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  • Above-average Attention Score compared to outputs of the same age (53rd percentile)
  • Average Attention Score compared to outputs of the same age and source

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2 tweeters

Citations

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42 Dimensions

Readers on

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50 Mendeley
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Title
Shedding patterns of dairy calves experimentally infected with Mycobacterium avium subspecies paratuberculosis
Published in
Veterinary Research, August 2014
DOI 10.1186/s13567-014-0071-1
Pubmed ID
Authors

Rienske AR Mortier, Herman W Barkema, Karin Orsel, Robert Wolf, Jeroen De Buck

Abstract

Although substantial fecal shedding is expected to start years after initial infection with Mycobacterium avium subspecies paratuberculosis (MAP), the potential for shedding by calves and therefore calf-to-calf transmission is underestimated in current Johne's disease (JD) control programs. Shedding patterns were determined in this study in experimentally infected calves. Fifty calves were challenged at 2 weeks or at 3, 6, 9 or 12 months of age (6 calves served as a control group). In each age group, 5 calves were inoculated with a low and 5 with a high dose of MAP. Fecal culture was performed monthly until necropsy at 17 months of age. Overall, 61% of inoculated calves, representing all age and dose groups, shed MAP in their feces at least once during the follow-up period. Although most calves shed sporadically, 4 calves in the 2-week and 3-month high dose groups shed at every sampling. In general, shedding peaked 2 months after inoculation. Calves inoculated at 2 weeks or 3 months with a high dose of MAP shed more frequently than those inoculated with a low dose. Calves shedding frequently had more culture-positive tissue locations and more severe gross and histological lesions at necropsy. In conclusion, calves inoculated up to 1 year of age shed MAP in their feces shortly after inoculation. Consequently, there is potential for MAP transfer between calves (especially if they are group housed) and therefore, JD control programs should consider young calves as a source of infection.

Twitter Demographics

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Mendeley readers

The data shown below were compiled from readership statistics for 50 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Japan 1 2%
United States 1 2%
Canada 1 2%
Unknown 47 94%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 11 22%
Researcher 10 20%
Student > Doctoral Student 7 14%
Student > Master 6 12%
Student > Bachelor 5 10%
Other 7 14%
Unknown 4 8%
Readers by discipline Count As %
Veterinary Science and Veterinary Medicine 21 42%
Agricultural and Biological Sciences 12 24%
Medicine and Dentistry 5 10%
Immunology and Microbiology 2 4%
Pharmacology, Toxicology and Pharmaceutical Science 1 2%
Other 0 0%
Unknown 9 18%

Attention Score in Context

This research output has an Altmetric Attention Score of 2. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 24 August 2014.
All research outputs
#1,997,586
of 4,171,124 outputs
Outputs from Veterinary Research
#210
of 377 outputs
Outputs of similar age
#46,244
of 104,439 outputs
Outputs of similar age from Veterinary Research
#9
of 20 outputs
Altmetric has tracked 4,171,124 research outputs across all sources so far. This one has received more attention than most of these and is in the 50th percentile.
So far Altmetric has tracked 377 research outputs from this source. They receive a mean Attention Score of 3.0. This one is in the 41st percentile – i.e., 41% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 104,439 tracked outputs that were published within six weeks on either side of this one in any source. This one has gotten more attention than average, scoring higher than 53% of its contemporaries.
We're also able to compare this research output to 20 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 50% of its contemporaries.