Identification of bla OXA-23 gene in resistant Pseudomonas aeruginosa strains isolated from cows and humans in Basra province, Iraq

is an infectious agent of great importance for animals and humans. It causes serious infections that show high resistance to antibiotics. This study investigated the molecular detection of gene in antibiotic-resistant strains isolated from cows and humans. In total, 120 samples, comprised 60 from co...

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Veröffentlicht in:Veterinary World 2024-07, Vol.17 (7), p.1629
Hauptverfasser: Jasim, Alyaa Sabti, Mohammed, Abeer Laily, Abbas, Wameedh Hashim, Ibraheim, Hanaa Khaleel, Gharban, Hasanain A J
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container_start_page 1629
container_title Veterinary World
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creator Jasim, Alyaa Sabti
Mohammed, Abeer Laily
Abbas, Wameedh Hashim
Ibraheim, Hanaa Khaleel
Gharban, Hasanain A J
description is an infectious agent of great importance for animals and humans. It causes serious infections that show high resistance to antibiotics. This study investigated the molecular detection of gene in antibiotic-resistant strains isolated from cows and humans. In total, 120 samples, comprised 60 from cows (30 milk and 30 nasal discharge) and 60 from their owners (30 urine and 30 sputum), were individually collected, cultured, and tested for through molecular analysis targeting the gene. antibiotic-resistant isolates were identified by performing antibiotic susceptibility testing and detecting biofilm formation. In total, 74.17% positive isolates, including 66.67% and 81.67% for cows and humans, respectively. Subsequently, positive cow isolates were detected in 60% of milk samples and 73.33% of nasal discharge samples; while positive human isolates were detected in 76.67% of urine samples and 86.66% of sputum samples. Targeting gene, 58.43% of cultured isolates were positive for by polymerase chain reaction. Respectively, positive isolates were detected in 66.67% and 45.46% of cow milk and nasal discharges as well as in 60.87% and 61.54% of human urine and sputum. The antibiotic susceptibility test revealed that all isolates were resistant to all applied antibiotics, particularly imipenem. Results of biofilm formation revealed 67.31% total positives, including 51.43% strong, 34.285% moderate, and 14.285% weak reactions. In addition, although values of the total positive cows and humans differed insignificantly, total positives showed insignificant variation between values of milk and nasal discharges of cows as well as between urine and sputum of humans; however, significant differences were identified in the distribution of strong, moderate, and weak positivity of these samples. Antibiotic overuse contributes extensively to increasing the prevalence of resistant isolates carrying the gene in both cows and humans. Furthermore, studies in other Iraqi areas are necessary to support our findings. The main limitations include that the number of tested samples is relatively low, and there is a need to use a large number of samples from different sources. Also, the current methods for detection of resistant isolates are still culture-based approaches.
doi_str_mv 10.14202/vetworld.2024.1629-1636
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It causes serious infections that show high resistance to antibiotics. This study investigated the molecular detection of gene in antibiotic-resistant strains isolated from cows and humans. In total, 120 samples, comprised 60 from cows (30 milk and 30 nasal discharge) and 60 from their owners (30 urine and 30 sputum), were individually collected, cultured, and tested for through molecular analysis targeting the gene. antibiotic-resistant isolates were identified by performing antibiotic susceptibility testing and detecting biofilm formation. In total, 74.17% positive isolates, including 66.67% and 81.67% for cows and humans, respectively. Subsequently, positive cow isolates were detected in 60% of milk samples and 73.33% of nasal discharge samples; while positive human isolates were detected in 76.67% of urine samples and 86.66% of sputum samples. Targeting gene, 58.43% of cultured isolates were positive for by polymerase chain reaction. Respectively, positive isolates were detected in 66.67% and 45.46% of cow milk and nasal discharges as well as in 60.87% and 61.54% of human urine and sputum. The antibiotic susceptibility test revealed that all isolates were resistant to all applied antibiotics, particularly imipenem. Results of biofilm formation revealed 67.31% total positives, including 51.43% strong, 34.285% moderate, and 14.285% weak reactions. In addition, although values of the total positive cows and humans differed insignificantly, total positives showed insignificant variation between values of milk and nasal discharges of cows as well as between urine and sputum of humans; however, significant differences were identified in the distribution of strong, moderate, and weak positivity of these samples. Antibiotic overuse contributes extensively to increasing the prevalence of resistant isolates carrying the gene in both cows and humans. Furthermore, studies in other Iraqi areas are necessary to support our findings. The main limitations include that the number of tested samples is relatively low, and there is a need to use a large number of samples from different sources. 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It causes serious infections that show high resistance to antibiotics. This study investigated the molecular detection of gene in antibiotic-resistant strains isolated from cows and humans. In total, 120 samples, comprised 60 from cows (30 milk and 30 nasal discharge) and 60 from their owners (30 urine and 30 sputum), were individually collected, cultured, and tested for through molecular analysis targeting the gene. antibiotic-resistant isolates were identified by performing antibiotic susceptibility testing and detecting biofilm formation. In total, 74.17% positive isolates, including 66.67% and 81.67% for cows and humans, respectively. Subsequently, positive cow isolates were detected in 60% of milk samples and 73.33% of nasal discharge samples; while positive human isolates were detected in 76.67% of urine samples and 86.66% of sputum samples. Targeting gene, 58.43% of cultured isolates were positive for by polymerase chain reaction. Respectively, positive isolates were detected in 66.67% and 45.46% of cow milk and nasal discharges as well as in 60.87% and 61.54% of human urine and sputum. The antibiotic susceptibility test revealed that all isolates were resistant to all applied antibiotics, particularly imipenem. Results of biofilm formation revealed 67.31% total positives, including 51.43% strong, 34.285% moderate, and 14.285% weak reactions. In addition, although values of the total positive cows and humans differed insignificantly, total positives showed insignificant variation between values of milk and nasal discharges of cows as well as between urine and sputum of humans; however, significant differences were identified in the distribution of strong, moderate, and weak positivity of these samples. Antibiotic overuse contributes extensively to increasing the prevalence of resistant isolates carrying the gene in both cows and humans. 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It causes serious infections that show high resistance to antibiotics. This study investigated the molecular detection of gene in antibiotic-resistant strains isolated from cows and humans. In total, 120 samples, comprised 60 from cows (30 milk and 30 nasal discharge) and 60 from their owners (30 urine and 30 sputum), were individually collected, cultured, and tested for through molecular analysis targeting the gene. antibiotic-resistant isolates were identified by performing antibiotic susceptibility testing and detecting biofilm formation. In total, 74.17% positive isolates, including 66.67% and 81.67% for cows and humans, respectively. Subsequently, positive cow isolates were detected in 60% of milk samples and 73.33% of nasal discharge samples; while positive human isolates were detected in 76.67% of urine samples and 86.66% of sputum samples. Targeting gene, 58.43% of cultured isolates were positive for by polymerase chain reaction. Respectively, positive isolates were detected in 66.67% and 45.46% of cow milk and nasal discharges as well as in 60.87% and 61.54% of human urine and sputum. The antibiotic susceptibility test revealed that all isolates were resistant to all applied antibiotics, particularly imipenem. Results of biofilm formation revealed 67.31% total positives, including 51.43% strong, 34.285% moderate, and 14.285% weak reactions. In addition, although values of the total positive cows and humans differed insignificantly, total positives showed insignificant variation between values of milk and nasal discharges of cows as well as between urine and sputum of humans; however, significant differences were identified in the distribution of strong, moderate, and weak positivity of these samples. Antibiotic overuse contributes extensively to increasing the prevalence of resistant isolates carrying the gene in both cows and humans. 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title Identification of bla OXA-23 gene in resistant Pseudomonas aeruginosa strains isolated from cows and humans in Basra province, Iraq
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