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Pathology and diagnosis of Mycobacterium bovis in naturally infected dromedary camels (Camelus dromedarius) in India

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Title Pathology and diagnosis of Mycobacterium bovis in naturally infected dromedary camels (Camelus dromedarius) in India
Not Available
 
Creator Shirish Dadarao Narnaware
Shyam Singh Dahiya
Fateh Chand Tuteja
Govindasamy Nagarajan
Kashi Nath
Nitin Vasantrao Patil
 
Subject Camel
Mycobacterium bovis
Pathology
 
Description Not Available
The present study investigated the pathological features
of tuberculosis (TB) caused by Mycobacterium bovis
and its diagnosis in naturally infected dromedary camels from
an organized farm in India. During the period of the 5-year
study, a total of 18 (19.56 %) camels out of 92 examined
showed gross lesions compatible with TB at post-mortem.
The clinical signs and pathological lesions in these camels
were studied, and the efficacy of different diagnostic tests
was also assessed. On the basis of occurrence and distribution
of gross TB lesions, the infected camels revealed two different
lesional patterns as pulmonary (n=15) and disseminated (n=
3) form. The histopathology of affected organs revealed typical
granulomatous lesions wherein the giant cells and acidfast
bacilli were occasionally observed in pulmonary form
whereas they frequently observed in disseminated form. The
single intradermal tuberculin test (SIDT) detected TB in 10
(55.55 %) whereas the Ziehl-Neelsen (ZN) stain and IS6110
PCR from tissue lesions detected 13 (72.22 %) and 18 (100 %)
of the infected camels, respectively. The study suggests that
pulmonary form of the TB is more common in camels indicating
respiratory route as the major source of exposure in
camel herds. Moreover, very low sensitivity of SIDT was observed
which highlights the difficulty for confirmation of TB
in live camels.
Not Available
 
Date 2018-11-30T07:30:19Z
2018-11-30T07:30:19Z
2015-08-01
 
Type Journal
Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/14472
 
Language English
 
Relation Not Available;
 
Publisher Springer