E-ISSN 2536-9520 | ISSN 1110-2047
 
2025, Vol: 84
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Original Article
Online Published: 25 Jan 2016
 


Molecular Epidemiology Based On SPA Genotyping Of Staphylococcus aureus Isolated From Cattle and Camels In Egypt

Alsagher O. Ali.


Abstract
Abstract
Staphylococcal protein A (spa) is an important virulence factor of S. aureus and it is considered one of the significant genes that used in the molecular epidemiological investigations. 240 milk samples were collected from animals with no signs of clinical mastitis; dairy cattle (140) and she-camels (100). This study was concerned with the analysis of the molecular characterizations of SPA genes extracted from the whole bacterial chromosome of 13 S. aureus isolates from cattle (9) and camels (4) raised in Egypt. According to the mecA gene, the S. aureus strains were divided into 7 methicillin resistant S. aureus (MRSA) and 6 methicillin susceptible S. aureus (MSSA). Analysis of the different SPA sequences revealed the presence of 8 SPA types; the most common SPA type was t359 that found in 5 isolates of S. aureus (all of them MRSA). By conducting the multiple sequence alignment, it revealed the presence of 7 conserved regions and 2 highly variable regions. The phylogenetic analysis of the SPA sequences of S. aureus local isolates and those were retrieved from the GENEBANK revealed 2 main clusters; the first one contained all local sequences in addition to EU695225. The rest of retrieved sequences were gathered in the second cluster.

Key words: Keywords: Staphylococcal protein A (SPA), molecular epidemiology, MRSA & MSSA


 
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Pubmed Style

Alsagher O. Ali. Molecular Epidemiology Based On SPA Genotyping Of Staphylococcus aureus Isolated From Cattle and Camels In Egypt. AJVS. 2016; 48(1): 62-68. doi:10.5455/ajvs.210660

Web Style

Alsagher O. Ali. Molecular Epidemiology Based On SPA Genotyping Of Staphylococcus aureus Isolated From Cattle and Camels In Egypt. https://www.alexjvs.com/?mno=210660 [Access: December 02, 2024]. doi:10.5455/ajvs.210660

AMA (American Medical Association) Style

Alsagher O. Ali. Molecular Epidemiology Based On SPA Genotyping Of Staphylococcus aureus Isolated From Cattle and Camels In Egypt. AJVS. 2016; 48(1): 62-68. doi:10.5455/ajvs.210660


Vancouver/ICMJE Style

Alsagher O. Ali. Molecular Epidemiology Based On SPA Genotyping Of Staphylococcus aureus Isolated From Cattle and Camels In Egypt. AJVS. (2016), [cited December 02, 2024]; 48(1): 62-68. doi:10.5455/ajvs.210660


Harvard Style

Alsagher O. Ali (2016) Molecular Epidemiology Based On SPA Genotyping Of Staphylococcus aureus Isolated From Cattle and Camels In Egypt. AJVS, 48 (1), 62-68. doi:10.5455/ajvs.210660


Turabian Style

Alsagher O. Ali. 2016. Molecular Epidemiology Based On SPA Genotyping Of Staphylococcus aureus Isolated From Cattle and Camels In Egypt. Alexandria Journal of Veterinary Sciences, 48 (1), 62-68. doi:10.5455/ajvs.210660


Chicago Style

Alsagher O. Ali. "Molecular Epidemiology Based On SPA Genotyping Of Staphylococcus aureus Isolated From Cattle and Camels In Egypt." Alexandria Journal of Veterinary Sciences 48 (2016), 62-68. doi:10.5455/ajvs.210660


MLA (The Modern Language Association) Style

Alsagher O. Ali. "Molecular Epidemiology Based On SPA Genotyping Of Staphylococcus aureus Isolated From Cattle and Camels In Egypt." Alexandria Journal of Veterinary Sciences 48.1 (2016), 62-68. Print. doi:10.5455/ajvs.210660


APA (American Psychological Association) Style

Alsagher O. Ali (2016) Molecular Epidemiology Based On SPA Genotyping Of Staphylococcus aureus Isolated From Cattle and Camels In Egypt. Alexandria Journal of Veterinary Sciences, 48 (1), 62-68. doi:10.5455/ajvs.210660




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    The Alexandria Journal of Veterinary Sciences (AJVS) Official Journal of Faculty of Veterinary Medicine, Alexandria University   ISSN: 1110 ... Read more.



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