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Cheng GM, Cheng H. Overcoming China's animal waste disposal challenge brought by elevated levels of veterinary antimicrobial residues and antimicrobial resistance. ENVIRONMENT INTERNATIONAL 2024; 191:109009. [PMID: 39278046 DOI: 10.1016/j.envint.2024.109009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 06/09/2024] [Accepted: 09/11/2024] [Indexed: 09/17/2024]
Abstract
Direct application of animal waste on farmlands was banned in China recently, rendering organic fertilizer production a sound solution for disposing of animal manures and recycling their materials and nutrients. Due to the overuse of antimicrobials in livestock and poultry farms, manure-based organic fertilizers often contain elevated residues of antimicrobials and abundant antimicrobial resistance genes. Land application of such products has caused significant concerns on the environmental pollution of antimicrobials, and the transmission and development of antimicrobial resistance (AMR), which is a major global health challenge. China's recent attempt to restrict the contents of antimicrobial residues in organic fertilizers encountered strong resistance from the industry as it would hinder the utilization of animal manures as a raw material. Reducing and even eliminating the use of antimicrobials in animal farms is the ultimate solution to the challenge of manure disposal posed by the elevated levels of antimicrobial residues and AMR. Phasing out the non-therapeutic use of antimicrobials, developing substitutes of antimicrobials, enhancing animal welfare in farms, promoting diversification of animal farms, and developing antimicrobial removal and disinfection technologies for animal waste are recommended to improve the veterinary antimicrobial stewardship and manure management in China's animal agriculture. These concerted measures would enhance the sustainability of crop and animal farming systems in China and mitigate the impact of antimicrobials and AMR to agro-environmental quality and human health.
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Affiliation(s)
- Grace M Cheng
- The Affiliated High School of Peking University, Beijing 100190, China
| | - Hefa Cheng
- MOE Key Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China.
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Neculai-Valeanu AS, Ariton AM, Radu C, Porosnicu I, Sanduleanu C, Amariții G. From Herd Health to Public Health: Digital Tools for Combating Antibiotic Resistance in Dairy Farms. Antibiotics (Basel) 2024; 13:634. [PMID: 39061316 PMCID: PMC11273838 DOI: 10.3390/antibiotics13070634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2024] [Revised: 07/04/2024] [Accepted: 07/06/2024] [Indexed: 07/28/2024] Open
Abstract
The emergence of antimicrobial resistance (AMR) is a significant threat to global food security, human health, and the future of livestock production. Higher rates of antimicrobial use in dairy farming and the sheer lack of new antimicrobials available for use focused attention on the question of how the dairy production sector contributed to the development of AMR and paved the path toward taking action to curtail it on the targeted type of farms. This paper aims to provide an introduction to a phenomenon that has gained considerable attention in the recent past due to its ever-increasing impact, the use of antimicrobial drugs, the emergence of antimicrobial resistance (AMR) on dairy farms, and seeks to discuss the possibilities of approaches such as digital health monitoring and precision livestock farming. Using sensors, data, knowledge, automation, etc., digital health monitoring, as well as Precision Livestock Farming (PLF), is expected to enhance health control and minimize disease and antimicrobial usage. The work presents a literature review on the current status and trends of AMR in dairy farms, an understanding of the concept of digital health monitoring and PLF, and the presentation and usefulness of digital health monitoring and PLF in preventing AMR. The study also analyses the strengths and weaknesses of adopting and incorporating digital technologies and artificial intelligence for dairy farming and presents areas for further study and level of use.
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Affiliation(s)
- Andra-Sabina Neculai-Valeanu
- Research and Development Station for Cattle Breeding Dancu, 707252 Iasi, Romania; (A.-S.N.-V.); (A.-M.A.)
- The Academy of Romanian Scientists, Str. Ilfov No. 3, Sector 5, 050045 Bucharest, Romania
| | - Adina-Mirela Ariton
- Research and Development Station for Cattle Breeding Dancu, 707252 Iasi, Romania; (A.-S.N.-V.); (A.-M.A.)
| | - Ciprian Radu
- Research and Development Station for Cattle Breeding Dancu, 707252 Iasi, Romania; (A.-S.N.-V.); (A.-M.A.)
| | - Ioana Porosnicu
- Research and Development Station for Cattle Breeding Dancu, 707252 Iasi, Romania; (A.-S.N.-V.); (A.-M.A.)
- The Academy of Romanian Scientists, Str. Ilfov No. 3, Sector 5, 050045 Bucharest, Romania
- Faculty of Veterinary Medicine, Iasi University of Life Science, 700490 Iasi, Romania
| | - Catalina Sanduleanu
- Research and Development Station for Cattle Breeding Dancu, 707252 Iasi, Romania; (A.-S.N.-V.); (A.-M.A.)
- Faculty of Food and Animal Resources, Iasi University of Life Science, 700490 Iasi, Romania
| | - Gabriela Amariții
- Research and Development Station for Cattle Breeding Dancu, 707252 Iasi, Romania; (A.-S.N.-V.); (A.-M.A.)
- Faculty of Food and Animal Resources, Iasi University of Life Science, 700490 Iasi, Romania
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Nohrborg S, Nguyen‐Thi T, Xuan HN, Hai YLT, Lindahl J, Boqvist S, Järhult JD, Magnusson U. Understanding veterinary drug shop workers' knowledge and practices to identify drivers of antibiotic use in Vietnamese livestock farms. Vet Med Sci 2024; 10:e1502. [PMID: 38853587 PMCID: PMC11163190 DOI: 10.1002/vms3.1502] [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] [Received: 02/14/2024] [Revised: 04/24/2024] [Accepted: 05/17/2024] [Indexed: 06/11/2024] Open
Abstract
BACKGROUND Antimicrobial resistance (AMR) is a One Health issue and a major threat to animal and human health. Antibiotic use (ABU) drives AMR development, and several hotspots for ABU, and AMR, in livestock have been identified in Southeast Asia, including Vietnam. There are often multiple drivers of ABU at farms, and to identify all of them there is a need to look beyond farm level. OBJECTIVES The overall aim of this study was to identify routines and/or competencies, related to antibiotic sales, among veterinary drug shop workers that may be improved in order to decrease the medically non-rational use of antibiotics in livestock production. METHODS A questionnaire-based survey was conducted at 50 veterinary drug shops in northern Vietnam. RESULTS Results showed high education and knowledge levels. According to the respondents, antibiotic treatment advice was almost always provided to the farmers, and the recommended treatment was most commonly based on recommendations for the specific disease. However, farmers had almost never had their animals properly diagnosed. Antibiotics were the most sold drug category, penicillins being the most common. Several broad-spectrum antibiotics were also quite frequently sold. Further, >50% of respondents recommended antibiotics for disease prevention. CONCLUSIONS Even though education and knowledge levels might be high, several challenges can prevent drug shop workers from contributing to more prudent ABU at farms, for example, lack of proper diagnosis, commercial interests and individual farmer motives, often in combination with poor compliance to regulations.
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Affiliation(s)
- Sandra Nohrborg
- Department of Clinical SciencesSwedish University of Agricultural SciencesUppsalaSweden
| | - Thinh Nguyen‐Thi
- International Livestock Research InstituteRegional Office for East and Southeast AsiaHanoiVietnam
| | - Huyen Nguyen Xuan
- Department of BacteriologyNational Institute of Veterinary ResearchHanoiVietnam
| | - Yen Luu Thi Hai
- Department of BacteriologyNational Institute of Veterinary ResearchHanoiVietnam
| | - Johanna Lindahl
- Department of Animal Health and Antimicrobial StrategiesSwedish Veterinary AgencyUppsalaSweden
| | - Sofia Boqvist
- Department of Animal BiosciencesSwedish University of Agricultural SciencesUppsalaSweden
| | - Josef D. Järhult
- Zoonosis Science Center, Department of Medical SciencesUppsala UniversityUppsalaSweden
| | - Ulf Magnusson
- Department of Clinical SciencesSwedish University of Agricultural SciencesUppsalaSweden
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Mudenda S, Chabalenge B, Daka V, Jere E, Sefah IA, Wesangula E, Yamba K, Nyamupachitu J, Mugenyi N, Mustafa ZU, Mpundu M, Chizimu J, Chilengi R. Knowledge, awareness and practices of healthcare workers regarding antimicrobial use, resistance and stewardship in Zambia: a multi-facility cross-sectional study. JAC Antimicrob Resist 2024; 6:dlae076. [PMID: 38764535 PMCID: PMC11100357 DOI: 10.1093/jacamr/dlae076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Accepted: 04/29/2024] [Indexed: 05/21/2024] Open
Abstract
Background Antimicrobial resistance (AMR) poses a threat to public health globally. Despite its consequences, there is little information about the knowledge, awareness, and practices towards AMR among healthcare workers (HCWs). Therefore, this study assessed the knowledge, awareness and practices regarding antimicrobial use (AMU), AMR and antimicrobial stewardship (AMS) among HCWs who are involved in the implementation of AMS activities across eight hospitals in Zambia. Methods A cross-sectional study was conducted among 64 HCWs from October to December 2023 using a semi-structured questionnaire. Data were analysed using IBM SPSS version 25.0. Results Of the 64 HCWs, 59.4% were females, 60.9% were aged between 25 and 34 years, 37.5% were nurses, 18.7% were pharmacists, 17.2% were medical doctors and only one was a microbiologist. Overall, 75% of the HCWs had good knowledge, 84% were highly aware and 84% had good practices regarding AMU, AMR and AMS. Most of the HCWs (90.6%) responded that they had a multidisciplinary AMS team at their hospitals and were implementing the use of the WHO AWaRe classification of antibiotics. Conclusion This study found good knowledge levels, high awareness and good practices regarding AMU, AMR and AMS among HCWs who were involved in the implementation of AMS activities in hospitals in Zambia. Additionally, most hospitals have been conducting AMS training and implementing the use of the WHO AWaRe classification of antibiotics. However, there is still a need to address some identified gaps in AMU and AMR through the strengthening of AMS activities in hospitals.
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Affiliation(s)
- Steward Mudenda
- Department of Pharmacy, School of Health Sciences, University of Zambia, Lusaka, Zambia
| | - Billy Chabalenge
- Department of Medicines Control, Zambia Medicines Regulatory Authority, Lusaka, Zambia
| | - Victor Daka
- Department of Public Health, Michael Chilufya Sata School of Medicine, Copperbelt University, Ndola, Zambia
| | - Elimas Jere
- Department of Medicines Control, Zambia Medicines Regulatory Authority, Lusaka, Zambia
| | - Israel Abebrese Sefah
- Pharmacy Practice Department, School of Pharmacy, University of Health and Allied Sciences, Volta Region, PMB 31, Ho, Ghana
| | - Evelyn Wesangula
- Strengthening Pandemic Preparedness, Eastern, Central, and Southern Africa Health Community, Arusha, Tanzania
| | - Kaunda Yamba
- Antimicrobial Resistance Coordinating Committee, Zambia National Public Health Institute, Lusaka, Zambia
| | | | - Nathan Mugenyi
- Faculty of Medicine, Mbarara University of Science and Technology, Mbarara, Uganda
| | - Zia Ul Mustafa
- Discipline of Clinical Pharmacy, School of Pharmaceutical Sciences, Universiti Sains Malaysia, Gelugor, Penang, 11800, Malaysia
- Department of Pharmacy Services, District Headquarter (DHQ) Hospital, Pakpattan, 57400, Pakistan
| | - Mirfin Mpundu
- Action on Antibiotic Resistance (ReAct) Africa, Lusaka, Zambia
| | - Joseph Chizimu
- Antimicrobial Resistance Coordinating Committee, Zambia National Public Health Institute, Lusaka, Zambia
| | - Roma Chilengi
- Antimicrobial Resistance Coordinating Committee, Zambia National Public Health Institute, Lusaka, Zambia
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Miao S, Yin J, Liu S, Zhu Q, Liao C, Jiang G. Maternal-Fetal Exposure to Antibiotics: Levels, Mother-to-Child Transmission, and Potential Health Risks. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:8117-8134. [PMID: 38701366 DOI: 10.1021/acs.est.4c02018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2024]
Abstract
Due to its widespread applications in various fields, antibiotics are continuously released into the environment and ultimately enter the human body through diverse routes. Meanwhile, the unreasonable use of antibiotics can also lead to a series of adverse outcomes. Pregnant women and developing fetuses are more susceptible to the influence of external chemicals than adults. The evaluation of antibiotic exposure levels through questionnaire surveys or prescriptions in medical records and biomonitoring-based data shows that antibiotics are frequently prescribed and used by pregnant women around the world. Antibiotics may be transmitted from mothers to their offspring through different pathways, which then adversely affect the health of offspring. However, there has been no comprehensive review on antibiotic exposure and mother-to-child transmission in pregnant women so far. Herein, we summarized the exposure levels of antibiotics in pregnant women and fetuses, the exposure routes of antibiotics to pregnant women, and related influencing factors. In addition, we scrutinized the potential mechanisms and factors influencing the transfer of antibiotics from mother to fetus through placental transmission, and explored the adverse effects of maternal antibiotic exposure on fetal growth and development, neonatal gut microbiota, and subsequent childhood health. Given the widespread use of antibiotics and the health threats posed by their exposure, it is necessary to comprehensively track antibiotics in pregnant women and fetuses in the future, and more in-depth biological studies are needed to reveal and verify the mechanisms of mother-to-child transmission, which is crucial for accurately quantifying and evaluating fetal health status.
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Affiliation(s)
- Shiyu Miao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jia Yin
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- School of Environment, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310024, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shuang Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qingqing Zhu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chunyang Liao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- School of Environment, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310024, China
- Hubei Key Laboratory of Environmental and Health Effects of Persistent Toxic Substances, School of Environment and Health, Jianghan University, Wuhan 430056, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- School of Environment, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310024, China
- Hubei Key Laboratory of Environmental and Health Effects of Persistent Toxic Substances, School of Environment and Health, Jianghan University, Wuhan 430056, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
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Nohrborg S, Nguyen-Thi T, Xuan HN, Lindahl J, Boqvist S, Järhult JD, Magnusson U. Understanding Vietnamese chicken farmers' knowledge and practices related to antimicrobial resistance using an item response theory approach. Front Vet Sci 2024; 11:1319933. [PMID: 38645642 PMCID: PMC11027563 DOI: 10.3389/fvets.2024.1319933] [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: 10/11/2023] [Accepted: 03/21/2024] [Indexed: 04/23/2024] Open
Abstract
Introduction Antimicrobial resistance (AMR) poses a threat to animal and human health, as well as food security and nutrition. Development of AMR is accelerated by over- and misuse of antimicrobials as seen in many livestock systems, including poultry production. In Vietnam, high AMR levels have been reported previously within poultry production, a sector which is dominated by small-scale farming, even though it is intensifying. This study focuses on understanding small- and medium-scale chicken farmers' knowledge and practices related to AMR by applying an item response theory (IRT) approach, which has several advantages over simpler statistical methods. Methods Farmers representing 305 farms in Thai Nguyen province were interviewed from November 2021 to January 2022, using a structured questionnaire. Results generated with IRT were used in regression models to find associations between farm characteristics, and knowledge and practice levels. Results Descriptive results showed that almost all farmers could buy veterinary drugs without prescription in the local community, that only one third of the farmers received veterinary professional advice or services, and that the majority of farmers gave antibiotics as a disease preventive measure. Regression analysis showed that multiple farm characteristics were significantly associated to farmers' knowledge and practice scores. Conclusion The study highlights the complexity when tailoring interventions to move towards more medically rational antibiotic use at farms in a setting with high access to over-the-counter veterinary drugs and low access to veterinary services, since many on-farm factors relevant for the specific context need to be considered.
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Affiliation(s)
- Sandra Nohrborg
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Thinh Nguyen-Thi
- International Livestock Research Institute, Regional Office for East and Southeast Asia, Hanoi, Vietnam
| | - Huyen Nguyen Xuan
- Department of Bacteriology, National Institute of Veterinary Research, Hanoi, Vietnam
| | - Johanna Lindahl
- Department of Animal Health and Antimicrobial Strategies, National Veterinary Institute, Uppsala, Sweden
| | - Sofia Boqvist
- Department of Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Josef D. Järhult
- Department of Medical Sciences, Zoonosis Science Center, Uppsala University, Uppsala, Sweden
| | - Ulf Magnusson
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden
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Ardakani Z, Aragrande M, Canali M. Global antimicrobial use in livestock farming: an estimate for cattle, chickens, and pigs. Animal 2024; 18:101060. [PMID: 38217891 DOI: 10.1016/j.animal.2023.101060] [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: 07/07/2023] [Revised: 12/08/2023] [Accepted: 12/12/2023] [Indexed: 01/15/2024] Open
Abstract
Livestock farming substantially contributes to the global economy and food security. However, it poses crucial environmental, animal welfare, and public health challenges. The main objective of this study is to quantify the global antimicrobial use (AMU) in cattle, chicken, and pig farming. This information is important for understanding the potential impact of farm AMU on the emergence and spread of antimicrobial resistance among animals and humans. Using the United States Department of Agriculture Production, Supply, and Distribution and the Food and Agriculture Organization databases, we estimated the total supply of cattle (in heads) and its distribution into four weight categories: calves (26%), cows (41%), heifers (4%), and bulls of more than one year (29%). Similarly, we calculated the total supply of pigs (in heads) and divided it into two weight categories: pigs (96%) and sows (4%). For chickens, we considered one weight category. We attributed to each category a standard weight according to the parameters set by the European Medicines Agency (EMA) to determine the animal biomass at risk of antimicrobial treatment, or population correction unit (PCU). Finally, we estimated the global PCUs and then the global AMU based on the average administered to the three species (in mg of active ingredients per kg PCU). With this method, we estimated a global annual AMU of 76 060 tonnes of antimicrobial active ingredients (2019-2021 average), of which 40 697 tonnes (or 53.5%) for cattle, 4 243 tonnes (or 5.6%) for chickens, and 31 120 tonnes (or 40.9%) for pigs. According to our assessment, global AMU leads to almost 20 000 tonnes less than the previous estimates due to a different evaluation of PCUs. In previous studies, PCUs were calculated on the liveweight at slaughtering of animals, while our method considers the age and sex of animals and their average weight at treatment. Our results are consistent with the World Organization for Animal Health (WOAH) estimate of 76 704 tonnes of veterinary antimicrobials globally consumed in 2018 for the total of food-producing animals (the WOAH estimation is based on sales and import data).
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Affiliation(s)
- Zahra Ardakani
- Department of Agricultural and Food Science, University of Bologna, Viale Giuseppe Fanin 44, Bologna 40127, Italy.
| | - Maurizio Aragrande
- Department of Agricultural and Food Science, University of Bologna, Viale Giuseppe Fanin 44, Bologna 40127, Italy
| | - Massimo Canali
- Department of Agricultural and Food Science, University of Bologna, Viale Giuseppe Fanin 44, Bologna 40127, Italy
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Islam MW, Shahjahan M, Azad AK, Hossain MJ. Factors contributing to antibiotic misuse among parents of school-going children in Dhaka City, Bangladesh. Sci Rep 2024; 14:2318. [PMID: 38282010 PMCID: PMC10822859 DOI: 10.1038/s41598-024-52313-y] [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: 09/24/2023] [Accepted: 01/17/2024] [Indexed: 01/30/2024] Open
Abstract
Antimicrobial resistance (AMR) is a pressing global health concern, especially in resource-constrained countries, such as Bangladesh. This study aimed to identify the factors contributing to antibiotic misuse by assessing knowledge, attitude, and practice (KAP). A cross-sectional study was conducted from August 20 to August 30, 2022, among 704 parents of school-going children in Dhaka South City. Descriptive statistics were used to analyze the KAP, and multivariate models, including linear and ordinal logistic regression, were used to explore the associations between these factors. The findings revealed that approximately 22% of the participants were male and 78% were female. Most parents (58%) had completed higher secondary education. Approximately 45% of the respondents demonstrated moderate knowledge, 53% had uncertain attitudes, and 64% exhibited antibiotic misuse. Factors such as parental age, education level, employment status, income, child's age, and family type significantly influenced KAP. These findings emphasize the importance of targeted education and awareness initiatives to enhance knowledge and responsible antibiotic use among parents, contributing to global efforts against antibiotic resistance. The government should enforce laws and regulations regarding the misuse of antibiotics.
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Affiliation(s)
- Md Wahidul Islam
- Population Health Studies Division, Center for Health Innovation, Research, Action, and Learning-Bangladesh (CHIRAL Bangladesh), 9-10 Chittaranjan Ave, Dhaka, 1100, Bangladesh
| | - Muhibullah Shahjahan
- Population Health Studies Division, Center for Health Innovation, Research, Action, and Learning-Bangladesh (CHIRAL Bangladesh), 9-10 Chittaranjan Ave, Dhaka, 1100, Bangladesh
| | - Abul Kalam Azad
- Department of Microbiology, Jagannath University, 9-10 Chittaranjan Ave, Dhaka, 1100, Bangladesh
| | - Md Jubayer Hossain
- Population Health Studies Division, Center for Health Innovation, Research, Action, and Learning-Bangladesh (CHIRAL Bangladesh), 9-10 Chittaranjan Ave, Dhaka, 1100, Bangladesh.
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Kisoo L, Muloi DM, Oguta W, Ronoh D, Kirwa L, Akoko J, Fèvre EM, Moodley A, Wambua L. Practices and drivers for antibiotic use in cattle production systems in Kenya. One Health 2023; 17:100646. [PMID: 38024269 PMCID: PMC10665206 DOI: 10.1016/j.onehlt.2023.100646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 10/23/2023] [Accepted: 10/26/2023] [Indexed: 12/01/2023] Open
Abstract
Understanding antibiotic use in livestock systems is key in combating antimicrobial resistance (AMR) and developing effective interventions. Using a standardised questionnaire, we investigated the patterns and drivers of antibiotic use in 165 cattle farms across the three major cattle production systems in Kenya: intensive, extensive, and semi-intensive systems across in three counties: Machakos, Makueni and Narok in Kenya. We used a causal diagram to inform regression models to explore the drivers of antibiotic use in the study farms. Antibiotic use was reported in 92.7% of farms, primarily for prophylactic purposes. Oxytetracycline, penicillin, and streptomycin were the most used antibiotics to treat and control the most reported diseases including mastitis, diarrhoea and East Coast fever (ECF). Regression analysis indicated a positive association between the frequency of antibiotic use at the farm level and both disease incidence and herd size. Conversely, farms that provided cattle with appropriate housing were less likely to use antibiotics, and there was no difference in antibiotic use between those who consulted with veterinarians or sourced antibiotics directly from animal health providers. Our study highlights the complexities around understanding the interplay between practices and drivers of antibiotic use. It also underscores the necessity to enhance education regarding the appropriate usage of antibiotics among cattle farmers, encourage the adoption of proper herd management practices which may reduce disease burden, and reinforce veterinary services and supportive legislation to promote the prudent use of antimicrobials.
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Affiliation(s)
- Lydiah Kisoo
- Animal and Human Health Department, International Livestock Research Institute, Nairobi, Kenya
- Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Neston, United Kingdom
| | - Dishon M. Muloi
- Animal and Human Health Department, International Livestock Research Institute, Nairobi, Kenya
- Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Neston, United Kingdom
| | - Walter Oguta
- Animal and Human Health Department, International Livestock Research Institute, Nairobi, Kenya
| | - Daisy Ronoh
- Animal and Human Health Department, International Livestock Research Institute, Nairobi, Kenya
| | - Lynn Kirwa
- Animal and Human Health Department, International Livestock Research Institute, Nairobi, Kenya
| | - James Akoko
- Animal and Human Health Department, International Livestock Research Institute, Nairobi, Kenya
| | - Eric M. Fèvre
- Animal and Human Health Department, International Livestock Research Institute, Nairobi, Kenya
- Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Neston, United Kingdom
| | - Arshnee Moodley
- Animal and Human Health Department, International Livestock Research Institute, Nairobi, Kenya
- Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg C, Denmark
| | - Lillian Wambua
- Animal and Human Health Department, International Livestock Research Institute, Nairobi, Kenya
- World Organization for Animal Health, Sub-Regional Representation for East Africa, Kenya
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Olaru ID, Walther B, Schaumburg F. Zoonotic sources and the spread of antimicrobial resistance from the perspective of low and middle-income countries. Infect Dis Poverty 2023; 12:59. [PMID: 37316938 DOI: 10.1186/s40249-023-01113-z] [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: 02/21/2023] [Accepted: 06/06/2023] [Indexed: 06/16/2023] Open
Abstract
BACKGROUND Antimicrobial resistance is an increasing challenge in low and middle-income countries as it is widespread in these countries and is linked to an increased mortality. Apart from human and environmental factors, animal-related drivers of antimicrobial resistance in low- and middle-income countries have special features that differ from high-income countries. The aim of this narrative review is to address the zoonotic sources and the spread of antimicrobial resistance from the perspective of low- and middle-income countries. MAIN BODY Contamination with extended-spectrum beta-lactamase (ESBL)-producing Escherichia coli is highest in poultry (Africa: 8.9-60%, Asia: 53-93%) and there is a risk to import ESBL-producing E. coli through poultry meat in Africa. In aquacultures, the proportion of ESBL-producers among E. coli can be high (27%) but the overall low quality of published studies limit the general conclusion on the impact of aquacultures on human health. ESBL-producing E. coli colonization of wildlife is 1-9% in bats or 2.5-63% birds. Since most of them are migratory animals, they can disperse antimicrobial resistant bacteria over large distances. So-called 'filth flies' are a relevant vector not only of enteric pathogens but also of antimicrobial resistant bacteria in settings where sanitary systems are poor. In Africa, up to 72.5% of 'filth flies' are colonized with ESBL-producing E. coli, mostly conferred by CTX-M (24.4-100%). While methicillin-resistant Staphylococcus aureus plays a minor role in livestock in Africa, it is frequently found in South America in poultry (27%) or pork (37.5-56.5%) but less common in Asia (poultry: 3%, pork: 1-16%). CONCLUSIONS Interventions to contain the spread of AMR should be tailored to the needs of low- and middle-income countries. These comprise capacity building of diagnostic facilities, surveillance, infection prevention and control in small-scale farming.
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Affiliation(s)
- Ioana D Olaru
- Institute of Medical Microbiology, University of Münster, Münster, Germany.
| | - Birgit Walther
- Advanced Light and Electron Microscopy, Robert Koch-Institute, Berlin, Germany
- Department of Environmental Hygiene, German Environment Agency, Berlin, Germany
| | - Frieder Schaumburg
- Institute of Medical Microbiology, University of Münster, Münster, Germany
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Mudenda S, Malama S, Munyeme M, Matafwali SK, Kapila P, Katemangwe P, Mainda G, Mukubesa AN, Hadunka MA, Muma JB. Antimicrobial resistance profiles of Escherichia coli isolated from laying hens in Zambia: implications and significance on one health. JAC Antimicrob Resist 2023; 5:dlad060. [PMID: 37223392 PMCID: PMC10202439 DOI: 10.1093/jacamr/dlad060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Accepted: 04/27/2023] [Indexed: 05/25/2023] Open
Abstract
Background Antimicrobial resistance (AMR) has been deepening in the layer poultry sector in Zambia partly due to the inappropriate use of antimicrobials. Escherichia coli (E. coli), a commensal and zoonotic bacterium, can potentially be a source of AMR. Objectives This study assessed the phenotypic AMR profiles of E. coli isolated from the apparent health-laying hens in Lusaka and Copperbelt provinces of Zambia. Methods A cross-sectional study was conducted between September 2020 and April 2021 in which 365 cloacal swabs were collected from 77-layer farms based in Lusaka and Copperbelt provinces of Zambia. E. coli isolation and identification were done using cultural and biochemical properties and confirmed using the 16S rRNA gene sequencing. Antimicrobial susceptibility testing (AST) was done using the Kirby-Bauer disc-diffusion method. Data analysis was done using WHONET 2020 and Stata v.16.1. Results Of the 365 samples, E. coli was isolated from 92.9% (n = 339). The AMR was detected in 96.5% (n = 327) of the isolates, of which 64.6% (n = 219) were multidrug-resistant (MDR). E. coli was highly resistant to tetracycline (54.6%) and ampicillin (54%) but showed low resistance to meropenem (0.9%), ceftazidime (6.2%) and chloramphenicol (8.8%). Conclusion This study found a high prevalence of E. coli resistant to some commonly used antibiotics in poultry, which is a public health concern because of the potential contamination of eggs and layers of chicken meat that enter the food chain. Urgent attention is needed, including strengthening antimicrobial stewardship and surveillance programmes in layer poultry production in Zambia.
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Affiliation(s)
| | - Sydney Malama
- Department of Biological Sciences, School of Natural Sciences, University of Zambia, Lusaka, Zambia
| | - Musso Munyeme
- Department of Disease Control, School of Veterinary Medicine, University of Zambia, Lusaka, Zambia
| | - Scott Kaba Matafwali
- Clinical Research Department, Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, UK
| | - Penjaninge Kapila
- Department of Disease Control, School of Veterinary Medicine, University of Zambia, Lusaka, Zambia
| | - Patrick Katemangwe
- Department of Disease Control, School of Veterinary Medicine, University of Zambia, Lusaka, Zambia
| | - Geoffrey Mainda
- Department of Veterinary Services, Central Veterinary Research Institute, Ministry of Fisheries and Livestock, Lusaka, Zambia
| | | | - Mwendalubi Albert Hadunka
- Department of Animal Health, Centre for Infectious Disease Research in Zambia (CIDRZ), Lusaka, Zambia
| | - John Bwalya Muma
- Department of Disease Control, School of Veterinary Medicine, University of Zambia, Lusaka, Zambia
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An emerging route to antibiotic resistance in South Asia: a correspondence. Ann Med Surg (Lond) 2023; 85:335-336. [PMID: 36845780 PMCID: PMC9949780 DOI: 10.1097/ms9.0000000000000165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 12/25/2022] [Indexed: 02/28/2023] Open
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