Phenotypic and Molecular Detection of Mycobacterium avium subsp. paratuberculosis in Small Ruminants Clinically Suspected with Johne᾿s Disease
Journal Title: SSR Institute of International Journal of Life Sciences (SSR-IIJLS) - Year 2018, Vol 4, Issue 5
Abstract
Johne's disease (JD) or Paratuberculosis (PTB) has gained a great attention by many industrial countries for its severing economic losses and possibly zoonotic concerns. In the current study conventional clinical and direct microscopic examination compared to real time polymerase chain reaction (RT-PCR) were used to diagnose JD in clinically suspected small ruminants. Clinical examination revealed 130 (8.7%) suspected cases that showed history of emaciation and diarrhea out of the total examined (1500) animals. Direct microscopy of Ziehl-Neelsen (ZN) stained smears (130) revealed 62 (47.7%) acid fast bacteria resembled Mycobacterium avium subsp. paratuberculosis (MAP). RT-PCR insertion sequence gene (IS900) detected MAP in 25 (65.8%) out of 38 fecal samples harbored acid fast bacilli. We were concluded and recommended that RT-PCR considers the most rapid confirmatory method for screening and diagnosis of the MAP in comparison to low specific conventional phenotypic methods, which still remained valuable techniques in the diagnosis of JD in developing countries.
Authors and Affiliations
Mohamed A. I. Hamid, Galal Eldin E. Mohammed, Amel O. Bakhiet, Elhassan M. A. Saeed
Keywords
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- EP ID EP671115
- DOI 10.21276/ijlssr.2018.4.5.9
- Views 66
- Downloads 0
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