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Duc HM, Hoa TTK, Ha CTT, Hung LV, Thang NV, Son HM, Flory GA. Antibiotic Resistance Profile and Bio-Control of Multidrug-Resistant Escherichia coli Isolated from Raw Milk in Vietnam Using Bacteriophages. Pathogens 2024; 13:494. [PMID: 38921792 PMCID: PMC11206458 DOI: 10.3390/pathogens13060494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 05/26/2024] [Accepted: 06/05/2024] [Indexed: 06/27/2024] Open
Abstract
E. coli is an important zoonotic pathogen capable of causing foodborne illness and bovine mastitis. Bacteriophages have been increasingly considered a promising tool to control unwanted bacteria. The aim of this study is to determine the antibiotic resistance profile of E. coli isolated from raw milk and the efficacy of phage in controlling multidrug-resistant E. coli in raw milk. Antibiotic susceptibility testing showed the highest resistance rates of E. coli isolates to co-trime (27.34%) and ampicillin (27.34%), followed by streptomycin (25.18%), tetracycline (23.02%), and the lowest resistance rates to ciprofloxacin, gentamycin, and ceftazidime, all at a rate of 2.16%. All isolates were susceptible to meropenem. Of the 139 E. coli isolates, 57 (41.01%) were resistant to at least one antibiotic, and 35 (25.18%) were classified as MDR strains. Molecular characterization indicated that 5 (3.6%) out of the 139 isolates were STEC strains carrying stx1 gene. Seven (5.04%) isolates were phenotypically identified as ESBLEC, and four isolates (2.88%) were resistant to colistin. The results of the genotypic test revealed that four out of seven ESBLEC strains carried both blaTEM and blaCTX-M-1, two harbored blaTEM, and one possessed blaCTX-M-1, while mcr-1 was detected in all four colistin-resistant E. coli isolates. In particular, one isolated E. coli strain (EM148) was determined to be a multidrug-resistant strain simultaneously carrying blaTEM, blaCTX-M-1, and mcr-1. A total of eight phages were successfully recovered from raw milk. The application of phage PEM3 significantly reduced viable counts of multidrug-resistant host EM148 in raw milk by at least 2.31 log CFU/mL at both 24 °C and 4 °C.
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Affiliation(s)
- Hoang Minh Duc
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Vietnam National University of Agriculture Trau Quy, Gia Lam, Hanoi 12400, Vietnam
| | - Tran Thi Khanh Hoa
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Vietnam National University of Agriculture Trau Quy, Gia Lam, Hanoi 12400, Vietnam
| | - Cam Thi Thu Ha
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Vietnam National University of Agriculture Trau Quy, Gia Lam, Hanoi 12400, Vietnam
| | - Le Van Hung
- Veterinary Hospital, Faculty of Veterinary Medicine, Vietnam National University of Agriculture Trau Quy, Gia Lam, Hanoi 12400, Vietnam
| | - Nguyen Van Thang
- Veterinary Hospital, Faculty of Veterinary Medicine, Vietnam National University of Agriculture Trau Quy, Gia Lam, Hanoi 12400, Vietnam
| | - Hoang Minh Son
- Department of Anatomy and Histology, Faculty of Veterinary Medicine, Vietnam National University of Agriculture Trau Quy, Gia Lam, Hanoi 12400, Vietnam
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Yeda R, Makalliwa G, Apondi E, Sati B, Riziki L, Ouma C, Anguko E, Opot B, Okoth R, Koech EJ, Ochieng B, Gachohi J, Kikuvi G. Comparative prevalence of diarrheagenic Escherichia coli between children below five years with close contact to food animals in Kisumu County, Kenya. Pan Afr Med J 2024; 47:25. [PMID: 38558553 PMCID: PMC10979810 DOI: 10.11604/pamj.2024.47.25.41197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 01/17/2024] [Indexed: 04/04/2024] Open
Abstract
Introduction diarrheal infections in young children below five years and food animals are caused by diarrheagenic Escherichia coli strains. The study focused on understanding the association between DEC pathotypes in children below five years and food animals to establish the possibility of zoonotic transmission. Methods samples from 150 children who presented with diarrhea at the Kisumu County Hospital and 100 stool samples from food animals were collected and processed using culture methods. Molecular identification of the pathotypes was assayed using a primer-specific polymerase chain reaction that targeted the six virulence genes related to the diarrheagenic Escherichia coli pathotypes. Results one hundred and fifty-six study subjects (100 children samples and 56 food animals) samples were positive for E. coli polymerase chain reaction detection revealed a prevalence of (23%) among children below five years and a prevalence of (20%) among the food animals. Children samples showed Enteroaggregative Escherichia coli, having high phenotypic frequency of (12%) followed by Enterotoxigenic Escherichia coli, (5.3%) and Enteropathogenic Escherichia (3.3%) the least being mixed infections Enteroaggregative/Enterotoxigenic Escherichia coli and Enteroaggregative/Enteropathogenic Escherichia coli with (1.3%) respectively. The food animals found in children homesteads were detected to harbor pathogenic strains of E. coli. Enteropathogenic Escherichia coli was the most prevalent pathotypes detected in cattle (13%) followed by Enterotoxigenic Escherichia coli detected in goats at (4%) and poultry at (3%). Conclusion presence of diarrheagenic Escherichia coli in food animals could serve as reservoirs of transmitting these bacteria to children below five years.
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Affiliation(s)
- Redemptah Yeda
- Department of Environmental Health and Disease Control, Jomo Kenya University of Agriculture and Technology, Nairobi, Kenya
| | - George Makalliwa
- Department of Environmental Health and Disease Control, Jomo Kenya University of Agriculture and Technology, Nairobi, Kenya
| | - Evans Apondi
- Department of Microbiology, Kenya Medical Research Institute Centre of Global Health Research, Kisumu, Kenya
| | - Ben Sati
- Department of Microbiology, Kenya Medical Research Institute Centre of Global Health Research, Kisumu, Kenya
| | - Laura Riziki
- Department of Microbiology, Kenya Medical Research Institute Centre of Global Health Research, Kisumu, Kenya
| | - Carolyne Ouma
- Department of Diagnostic and Laboratory Systems Program, Center for Disease Control, Kisumu, Kenya
| | - Elekiah Anguko
- Department of Diagnostic and Laboratory Systems Program, Center for Disease Control, Kisumu, Kenya
| | - Benjamin Opot
- Department of Malaria and Drug Resistance Laboratory, United States Army Medical Research Directorate-Africa/Kenya (USAMRD-A/K), Centre for Clinical Research, Kenya Medical Research Institute (KEMRI), Kisumu, Kenya
| | - Raphael Okoth
- Department of Malaria and Drug Resistance Laboratory, United States Army Medical Research Directorate-Africa/Kenya (USAMRD-A/K), Centre for Clinical Research, Kenya Medical Research Institute (KEMRI), Kisumu, Kenya
| | - Emmily Jepkemboi Koech
- Department of Microbiology, Kenya Medical Research Institute Centre of Global Health Research, Kisumu, Kenya
| | - Ben Ochieng
- Department of Microbiology, Kenya Medical Research Institute Centre of Global Health Research, Kisumu, Kenya
| | - John Gachohi
- Department of Environmental Health and Disease Control, Jomo Kenya University of Agriculture and Technology, Nairobi, Kenya
- Washington State University Global Health Program, Washington State University, P. O. Box 72938, Nairobi 00200, Kenya
- Paul G, Allen School of Global Health, Washington State University, Pullman WA99164, USA
| | - Gideon Kikuvi
- Department of Environmental Health and Disease Control, Jomo Kenya University of Agriculture and Technology, Nairobi, Kenya
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Liyanage SH, Yan M. Maltose-Derivatized Fluorescence Turn-On Imaging Probe for Bacteria Detection. ACS Infect Dis 2023; 9:2560-2571. [PMID: 37936289 DOI: 10.1021/acsinfecdis.3c00403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
We report a maltose-derivatized fluorescence turn-on imaging probe, Mal-Cz, to detect E. coli and Staphylococci. The fluorescence turn-on is achieved through an intramolecular C-H insertion reaction of the perfluoroaryl azide-functionalized carbazole to give a fluorescent product. Confocal fluorescence microscopy confirmed the successful uptake of Mal-Cz by E. coli and Staphylococci upon photoactivation. The Mal-Cz probe could selectively detect E. coli and S. epidermidis in the presence of P. aeruginosa and M. smegmatis without interference from these bacteria. Both the photoactivation and bacteria detection can be accomplished using a hand-held UV lamp at 365 nm, with the limit of detection of 103 CFU/mL by the naked eye. Mal-Cz could also be used to detect E. coli and S. epidermidis spiked in milk by the naked eye under a hand-held UV lamp. The uptake of Mal-Cz requires metabolically active bacteria: the uptake was reduced in stationary phase bacteria and was diminished in bacteria that were killed by heating or treating with antibiotics or sodium azide. The uptake decreased with increasing concentration of added free maltose, indicating that Mal-Cz hijacked the maltose uptake pathways. In E. coli, the maltose transport systems, including maltoporin LamB, maltose binding protein MBP, and the maltose ATP binding cassette (ABC) transporter MalFGK2, are all critical for the transport of Mal-Cz. The uptake was diminished in the deletion mutants ΔLamB, ΔMalE, ΔMalF, and ΔMalK.
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Affiliation(s)
- Sajani H Liyanage
- Department of Chemistry, University of Massachusetts Lowell, Lowell, Massachusetts 01854, United States
| | - Mingdi Yan
- Department of Chemistry, University of Massachusetts Lowell, Lowell, Massachusetts 01854, United States
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Anika TT, Noman ZA, Rahman AKMA, Sultana N, Ashraf MN, Pervin M, Islam MA, Hossain MM, Khan MAHNA. Electrical conductivity and total dissolved solid of raw milk for the detection of bovine subclinical mastitis. Vet World 2023; 16:2521-2525. [PMID: 38328354 PMCID: PMC10844782 DOI: 10.14202/vetworld.2023.2521-2525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Accepted: 11/22/2023] [Indexed: 02/09/2024] Open
Abstract
Background and Aim Bovine subclinical mastitis (SCM) is highly prevalent among dairy cattle. A cross-sectional study was conducted in Bangladesh to evaluate the performance of electric conductivity (EC) and total dissolved solids (TDS) tests for the detection of SCM. Materials and Methods We randomly selected 108 milk samples from cows of different breeds in the primary milk-producing region of Pabna and Sirajgonj districts of Bangladesh. Samples were subjected to the California mastitis test (CMT), white side test (WST), electric conductivity (EC), TDS, and culture. A cow was considered positive for SCM if it tested positive in CMT, WST, and culture, whereas a cow was considered negative for SCM if it tested negative in all three methods. These gold standards have been used to evaluate the performance of the EC and TDS tests. The optimal EC and TDS cutoff values for the detection of SCM were determined using the "optimal cutoff" function in R version 4.3.1. Results The optimal EC cutoff value for SCM detection was found to be 6159 μS/cm or 6.16 mS/cm. A positive likelihood ratio (LR+) of 31.2 and an area under the curve (AUC) of 0.905 were obtained for this cutoff value. The optimal cutoff value for TDS was 3100 mg/L of milk, which resulted in a positive LR+ of 45.5 and an AUC of 0.924. Conclusion To the best of our knowledge, this is the first study to evaluate the performance of EC and TDS tests in detecting SCM in Bangladesh. These results suggest that EC and TDS tests, which are inexpensive, rapid, and easy to conduct, can effectively detect SCM at the farm level.
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Affiliation(s)
- Tasnia Tabassum Anika
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh
| | - Zakaria Al Noman
- Bangladesh Council of Scientific and Industrial Research, Dhaka, 1205, Bangladesh
| | - A. K. M. Anisur Rahman
- Department of Medicine, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh
| | - Nazneen Sultana
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh
| | - Mohammad Nahid Ashraf
- Department of Microbiology and Hygiene, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh
| | - Munmun Pervin
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh
| | - M. Ariful Islam
- Department of Medicine, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh
| | - Md. Mokbul Hossain
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh
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Yousef HMY, Hashad ME, Osman KM, Alatfeehy NM, Hassan WMM, Elebeedy LA, Salem HM, Shami A, Al-Saeed FA, El-Saadony MT, El-Tarabily KA, Marouf S. Surveillance of Escherichia coli in different types of chicken and duck hatcheries: one health outlook. Poult Sci 2023; 102:103108. [PMID: 37862868 PMCID: PMC10616547 DOI: 10.1016/j.psj.2023.103108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 09/07/2023] [Accepted: 09/07/2023] [Indexed: 10/22/2023] Open
Abstract
Escherichia coli is an important zoonotic bacterium that significantly impacts one health concept. E. coli is normally detected in the gut of warm-blooded animals, but some serotypes can cause diseases in humans and animals. Moreover, it can continue for a long time in different environments, replicate in water, and survive outside different hosts. In this study, 171 samples collected from 10 different types of poultry hatcheries (automatic, semiautomatic, and manual "traditional" types) were examined for the prevalence of E. coli. PCR was applied to verify the E. coli isolates via 16S rRNA gene-specific primers. From the gathered samples, 62 E. coli isolates were recovered (36.3%). The highest prevalence was met with the manual "traditional" hatcheries (57.1%) with no significance difference (P = 0.243) in the 3 types of hatcheries. The incidence of E. coli varied significantly in different tested avian types and breeds. The prevalence was 35.7% in duck hatcheries and 37% in chicken hatcheries, with significant differences between breeds of both species (P = 0.024 and 0.001, respectively). The identification of zoonotic E. coli serotypes in this study is concerning, highlighting the need for collaborative efforts across various sectors, including social, environmental, and governance, to promote the adoption of the one health principle in the chicken business. Periodical surveillance, biosecurity measures at the hatcheries and farm levels, and boosting the immunity of birds were recommended to limit the risk of E. coli spread from avian sources to humans.
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Affiliation(s)
- Hend M Y Yousef
- Central Administration of Preventive Medicine, General Organization for Veterinary Service, Giza 3751254, Egypt
| | - Mahmoud E Hashad
- Department of Microbiology, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt
| | - Kamelia M Osman
- Department of Microbiology, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt
| | - Nayera M Alatfeehy
- Reference Laboratory for Veterinary Quality Control on Poultry Production (RLQP), Animal Health Research Institute (AHRI), Agriculture Research Center (ARC), Giza 12618, Egypt
| | - Wafaa M M Hassan
- Reference Laboratory for Veterinary Quality Control on Poultry Production (RLQP), Animal Health Research Institute (AHRI), Agriculture Research Center (ARC), Giza 12618, Egypt
| | - Lamia A Elebeedy
- Department of Microbiology, Faculty of Pharmacy, New Valley University, Kharga Oasis, New Valley 1065002, Egypt
| | - Heba M Salem
- Department of Poultry Diseases, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt
| | - Ashwag Shami
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia
| | - Fatimah A Al-Saeed
- Department of Biology, College of Science, King Khalid University, Abha 9088, Saudi Arabia
| | - Mohamed T El-Saadony
- Department of Agricultural Microbiology, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
| | - Khaled A El-Tarabily
- Department of Biology, College of Science, United Arab Emirates University, Al Ain 15551, United Arab Emirates.
| | - Sherif Marouf
- Department of Microbiology, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt
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