Bacterial isolation from internal organs of rats (Rattus rattus) captured in Baghdad city of Iraq

Aim: Rats are accused in disseminating many zoonotic diseases. This study aimed to isolate and identify bacteria from internal organs of rats captured in Baghdad City, Iraq. Materials and Methods: A total of 120 black rats (R. rattus) were trapped from different areas in Baghdad city. Rats were k...

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Main Authors: Nagham Mohammed Ayyal, Zainab Abdulzahra Abbas, Abdulkarim Jafar Karim, Zainab Majid Abbas, Karima Akool Al-Salihi, Jenan Mahmood Khalaf, Dunya Dhafir Mahmood, Eman Abdullah Mohammed, Rawaa Saladdin Jumaa, Dhuha Ismaeel Abdul-Majeed
Format: Article
Language:English
Published: Veterinary World 2019-01-01
Series:Veterinary World
Subjects:
Online Access:http://www.veterinaryworld.org/Vol.12/January-2019/17.pdf
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author Nagham Mohammed Ayyal
Zainab Abdulzahra Abbas
Abdulkarim Jafar Karim
Zainab Majid Abbas
Karima Akool Al-Salihi
Jenan Mahmood Khalaf
Dunya Dhafir Mahmood
Eman Abdullah Mohammed
Rawaa Saladdin Jumaa
Dhuha Ismaeel Abdul-Majeed
author_facet Nagham Mohammed Ayyal
Zainab Abdulzahra Abbas
Abdulkarim Jafar Karim
Zainab Majid Abbas
Karima Akool Al-Salihi
Jenan Mahmood Khalaf
Dunya Dhafir Mahmood
Eman Abdullah Mohammed
Rawaa Saladdin Jumaa
Dhuha Ismaeel Abdul-Majeed
author_sort Nagham Mohammed Ayyal
collection DOAJ
description Aim: Rats are accused in disseminating many zoonotic diseases. This study aimed to isolate and identify bacteria from internal organs of rats captured in Baghdad City, Iraq. Materials and Methods: A total of 120 black rats (R. rattus) were trapped from different areas in Baghdad city. Rats were kept in individual plastic cages for 3 h before euthanizing. Deep pharyngeal swab, intestinal content, urine, and pieces of the liver and spleen, lung, kidney, and brain were obtained aseptically. The specimens were inoculated into peptone water and incubated at 37°C for 24 h for enrichment. A loopful of each specimen was then subcultured onto MacConkey Agar, Blood Agar, and Mannitol Salt Agar. CHROMagar O157 H7 and CHROMagar Listeria were used to detect Escherichia coli 157:7 and Listeria spp., respectively. Biochemical tests on analytical profile index, microscopic examination, and commercial kit for latex agglutination test for serotyping E. coli O157:H7 were used. Results: Mixed bacterial isolates were recorded as 116, 52, 36, 28, 18, 6, and 4 from intestinal contents, deep pharyngeal, liver and spleen, urine, lung, brain, and kidney, respectively. Microorganisms included E. coli, Staphylococcus aureus, Streptococcus spp., Bacillus spp., Pseudomonas aeruginosa, Citrobacter freundii, Proteus vulgaris, E. coli O157:H7, Enterobacter cloacae, Listeria spp., Klebsiella spp., Ochrobactrum anthropi, Aeromonas spp., Brucella spp., Pseudomonas fluorescens, Escherichia fergusonii, Micrococcus spp., Morganella spp., Proteus mirabilis, Pseudomonas luteola, and Streptobacillus spp. The highest bacterial prevalence (88; 73.33%) was recorded for E. coli, where 68 isolates were identified from the intestinal contents. Of these, four isolates were E. coli O157:H7. Conclusion: Rats are important carriers and transmitters of a number of pathogens and can disseminate these microorganisms to humans and animals.
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spelling doaj.art-1050035ec6cc4abdab4e0bbef6ae6d112022-12-21T22:21:38ZengVeterinary WorldVeterinary World0972-89882231-09162019-01-0112111912510.14202/vetworld.2019.119-125Bacterial isolation from internal organs of rats (Rattus rattus) captured in Baghdad city of IraqNagham Mohammed Ayyal0Zainab Abdulzahra Abbas1Abdulkarim Jafar Karim2Zainab Majid Abbas3Karima Akool Al-Salihi4Jenan Mahmood Khalaf5Dunya Dhafir Mahmood6Eman Abdullah Mohammed7Rawaa Saladdin Jumaa8Dhuha Ismaeel Abdul-Majeed9Unit of Zoonotic Diseases, College of Veterinary Medicine, University of Baghdad, Baghdad, Iraq.Unit of Zoonotic Diseases, College of Veterinary Medicine, University of Baghdad, Baghdad, Iraq.Unit of Zoonotic Diseases, College of Veterinary Medicine, University of Baghdad, Baghdad, Iraq.Department of Pathological Analysis, Babylon Technical Institute, Al-Furat Al-Awsat Technical University, Babylon, Iraq.Department of Internal and Preventive Medicine, College of Veterinary Medicine, Al-Muthanna University, Al-Muthanna, Iraq.Department of Internal and Preventive Medicine, College of Veterinary Medicine, University of Baghdad, Baghdad, Iraq.Unit of Zoonotic Diseases, College of Veterinary Medicine, University of Baghdad, Baghdad, Iraq.Department of Parasitology, College of Veterinary Medicine, University of Baghdad, Baghdad, Iraq.Department of Microbiology, College of Veterinary Medicine, University of Baghdad, Baghdad, Iraq.Department of Microbiology, College of Veterinary Medicine, University of Baghdad, Baghdad, Iraq.Aim: Rats are accused in disseminating many zoonotic diseases. This study aimed to isolate and identify bacteria from internal organs of rats captured in Baghdad City, Iraq. Materials and Methods: A total of 120 black rats (R. rattus) were trapped from different areas in Baghdad city. Rats were kept in individual plastic cages for 3 h before euthanizing. Deep pharyngeal swab, intestinal content, urine, and pieces of the liver and spleen, lung, kidney, and brain were obtained aseptically. The specimens were inoculated into peptone water and incubated at 37°C for 24 h for enrichment. A loopful of each specimen was then subcultured onto MacConkey Agar, Blood Agar, and Mannitol Salt Agar. CHROMagar O157 H7 and CHROMagar Listeria were used to detect Escherichia coli 157:7 and Listeria spp., respectively. Biochemical tests on analytical profile index, microscopic examination, and commercial kit for latex agglutination test for serotyping E. coli O157:H7 were used. Results: Mixed bacterial isolates were recorded as 116, 52, 36, 28, 18, 6, and 4 from intestinal contents, deep pharyngeal, liver and spleen, urine, lung, brain, and kidney, respectively. Microorganisms included E. coli, Staphylococcus aureus, Streptococcus spp., Bacillus spp., Pseudomonas aeruginosa, Citrobacter freundii, Proteus vulgaris, E. coli O157:H7, Enterobacter cloacae, Listeria spp., Klebsiella spp., Ochrobactrum anthropi, Aeromonas spp., Brucella spp., Pseudomonas fluorescens, Escherichia fergusonii, Micrococcus spp., Morganella spp., Proteus mirabilis, Pseudomonas luteola, and Streptobacillus spp. The highest bacterial prevalence (88; 73.33%) was recorded for E. coli, where 68 isolates were identified from the intestinal contents. Of these, four isolates were E. coli O157:H7. Conclusion: Rats are important carriers and transmitters of a number of pathogens and can disseminate these microorganisms to humans and animals.http://www.veterinaryworld.org/Vol.12/January-2019/17.pdfbacteriadifferent organsEscherichia coli O157:H7Pseudomonas aeruginosaraturine
spellingShingle Nagham Mohammed Ayyal
Zainab Abdulzahra Abbas
Abdulkarim Jafar Karim
Zainab Majid Abbas
Karima Akool Al-Salihi
Jenan Mahmood Khalaf
Dunya Dhafir Mahmood
Eman Abdullah Mohammed
Rawaa Saladdin Jumaa
Dhuha Ismaeel Abdul-Majeed
Bacterial isolation from internal organs of rats (Rattus rattus) captured in Baghdad city of Iraq
Veterinary World
bacteria
different organs
Escherichia coli O157:H7
Pseudomonas aeruginosa
rat
urine
title Bacterial isolation from internal organs of rats (Rattus rattus) captured in Baghdad city of Iraq
title_full Bacterial isolation from internal organs of rats (Rattus rattus) captured in Baghdad city of Iraq
title_fullStr Bacterial isolation from internal organs of rats (Rattus rattus) captured in Baghdad city of Iraq
title_full_unstemmed Bacterial isolation from internal organs of rats (Rattus rattus) captured in Baghdad city of Iraq
title_short Bacterial isolation from internal organs of rats (Rattus rattus) captured in Baghdad city of Iraq
title_sort bacterial isolation from internal organs of rats rattus rattus captured in baghdad city of iraq
topic bacteria
different organs
Escherichia coli O157:H7
Pseudomonas aeruginosa
rat
urine
url http://www.veterinaryworld.org/Vol.12/January-2019/17.pdf
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