Multi Drug Resistant Staphylococci Isolated from Pigs with Exudative Epidermitis in North Eastern Region of India,Letters in Applied Microbiology

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Multi Drug Resistant Staphylococci Isolated from Pigs with Exudative Epidermitis in North Eastern Region of India
Letters in Applied Microbiology ( IF 2.4 ) Pub Date : 2021-01-25 , DOI: 10.1111/lam.13448
S. Kalai ₁ , P. Roychoudhury ₁ , T.K. Dutta ₁ , P.K. Subudhi ₁ , S. Chakraborty ₁ , N.N. Barman ₂ , A. Sen ₃

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Exudative epidermatitis (EE) or greasy pig disease (GPD) is a contagious disease of pig and endemic worldwide caused by toxigenic strains under genus Staphylococcus. The present study reported an outbreak of GPD in Champhai district of Mizoram adjoining to the southern border of Myanmar. A total of 60 samples were collected from 22 clinically affected animals and processed for isolation and identification of Staphylococcus spp. All the isolates were subjected to antimicrobial sensitivity assay, biofilm production assay and detection of virulence genes, biofilm genes and mec genes followed by cloning and sequencing for phylogenetic analysis. A total of 44 staphylococci belonged to 4 species (S. sciuri, S. aureus, S. lentus, and S. hyicus) were isolated. Majority of the isolates were multidrug resistant (MDR) with maximum resistance against ampicillin, penicillin including vancomycin. None of the S. hyicus isolates was methicillin resistant (MRSH) but 66.67% isolates were MRSA. By PCR, mecA gene was detected in S. aureus (n=2), S. sciuri (n=4) and S. lentus (n=3). Biofilm associated gene icaD was detected in S. aureus (n=3), S. sciuri (n=5), S. hyicus (n=4) and S. lentus (n=6). The exfoliative toxin genes (ehxB, shetA and tsst1) were detected in S. hyicus (n=3) and S. aureus (n=1) isolates. All the isolates were closely related with the isolates from pigs of China, Germany, Japan and USA. The pathogens might be transmitted through illegal migration of pigs from Myanmar to India.

更新日期：2021-01-25

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