1
|
Qian L, Zhuang Z, Lu J, Wang H, Wang X, Yang S, Ji L, Shen Q, Zhang W, Shan T. Metagenomic survey of viral diversity obtained from feces of piglets with diarrhea. Heliyon 2024; 10:e25616. [PMID: 38375275 PMCID: PMC10875384 DOI: 10.1016/j.heliyon.2024.e25616] [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: 06/10/2023] [Revised: 12/02/2023] [Accepted: 01/30/2024] [Indexed: 02/21/2024] Open
Abstract
Pigs are natural host to various zoonotic pathogens including viruses. In this study, we analyzed the viral communities in the feces of 89 piglets with diarrhea under one month old which were collected from six farms in Jiangsu Province of the Eastern China, using the unbiased virus metagenomic method. A total of 89 libraries were constructed, and 46937894 unique sequence reads were generated by Illumina sequencing. Overall, the family Picornaviridae accounted for the majority of the total reads of putative mammalian viruses. Ten novel virus genomes from different family members were discovered, including Parvoviridae (n = 2), Picobirnaviridae (n = 4) and CRESS DNA viruses (n = 4). A large number of phages were identified, which mainly belonged to the order Caudovirales and the family Microviridae. Moreover, some identified viruses were closely related to viruses found in non-porcine hosts, highlighting the potential for cross-species virus dissemination. This study increased our understanding of the fecal virus communities of diarrhea piglets and provided valuable information for virus monitoring and preventing.
Collapse
Affiliation(s)
- Lingling Qian
- Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, China
| | - Zi Zhuang
- Center of Clinical Laboratory, Dushu Lake Hospital Affiliated to Soochow University, Soochow University, Suzhou, Jiangsu, 215000, China
| | - Juan Lu
- Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, China
| | - Huiying Wang
- Institute of Animal Husbandry and Veterinary Science, Shanghai Academy of Agricultural Sciences, Shanghai, 200062, China
| | - Xiaochun Wang
- Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, China
| | - Shixing Yang
- Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, China
| | - Likai Ji
- Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, China
| | - Quan Shen
- Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, China
| | - Wen Zhang
- Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, China
| | - Tongling Shan
- Department of Swine Infectious Disease, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, 200241, China
| |
Collapse
|
2
|
Wang Y, Zhang P, Wu J, Chen S, Jin Y, Long J, Duan G, Yang H. Transmission of livestock-associated methicillin-resistant Staphylococcus aureus between animals, environment, and humans in the farm. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:86521-86539. [PMID: 37418185 DOI: 10.1007/s11356-023-28532-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 06/28/2023] [Indexed: 07/08/2023]
Abstract
Staphylococcus aureus (S. aureus) is a fearsome bacterial pathogen that can colonize and infect humans and animals. Depending on the different sources, MRSA is classified as hospital-associated methicillin-resistant S. aureus (HA-MRSA), community-associated MRSA (CA-MRSA), and livestock-associated MRSA (LA-MRSA). LA-MRSA is initially associated with livestock, and clonal complexes (CCs) were almost always 398. However, the continued development of animal husbandry, globalization, and the widespread use of antibiotics have increased the spread of LA-MRSA among humans, livestock, and the environment, and other clonal complexes such as CC9, CC5, and CC8 have gradually emerged in various countries. This may be due to frequent host switching between humans and animals, as well as between animals. Host-switching is typically followed by subsequent adaptation through acquisition and/or loss of mobile genetic elements (MGEs) such as phages, pathogenicity islands, and plasmids as well as further host-specific mutations allowing it to expand into new host populations. This review aimed to provide an overview of the transmission characteristics of S. aureus in humans, animals, and farm environments, and also to describe the main prevalent clones of LA-MRSA and the changes in MGEs during host switching.
Collapse
Affiliation(s)
- Ying Wang
- Department of Epidemiology, College of Public Health, Zhengzhou University, No. 100 of Science Avenue, Zhengzhou, 450001, China
| | - Peihua Zhang
- Department of Epidemiology, College of Public Health, Zhengzhou University, No. 100 of Science Avenue, Zhengzhou, 450001, China
| | - Jian Wu
- Department of Epidemiology, College of Public Health, Zhengzhou University, No. 100 of Science Avenue, Zhengzhou, 450001, China
| | - Shuaiyin Chen
- Department of Epidemiology, College of Public Health, Zhengzhou University, No. 100 of Science Avenue, Zhengzhou, 450001, China
| | - Yuefei Jin
- Department of Epidemiology, College of Public Health, Zhengzhou University, No. 100 of Science Avenue, Zhengzhou, 450001, China
| | - Jinzhao Long
- Department of Epidemiology, College of Public Health, Zhengzhou University, No. 100 of Science Avenue, Zhengzhou, 450001, China
| | - Guangcai Duan
- Department of Epidemiology, College of Public Health, Zhengzhou University, No. 100 of Science Avenue, Zhengzhou, 450001, China
| | - Haiyan Yang
- Department of Epidemiology, College of Public Health, Zhengzhou University, No. 100 of Science Avenue, Zhengzhou, 450001, China.
| |
Collapse
|
3
|
Ramesh A, Bailey ES, Ahyong V, Langelier C, Phelps M, Neff N, Sit R, Tato C, DeRisi JL, Greer AG, Gray GC. Metagenomic characterization of swine slurry in a North American swine farm operation. Sci Rep 2021; 11:16994. [PMID: 34417469 PMCID: PMC8379149 DOI: 10.1038/s41598-021-95804-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 07/30/2021] [Indexed: 12/21/2022] Open
Abstract
Modern day large-scale, high-density farming environments are inherently susceptible to viral outbreaks, inadvertently creating conditions that favor increased pathogen transmission and potential zoonotic spread. Metagenomic sequencing has proven to be a useful tool for characterizing the microbial burden in both people, livestock, and environmental samples. International efforts have been successful at characterizing pathogens in commercial farming environments, especially swine farms, however it is unclear whether the full extent of microbial agents have been adequately captured or is representative of farms elsewhere. To augment international efforts we performed metagenomic next-generation sequencing on nine swine slurry and three environmental samples from a United States of America (U.S.A.) farm operation, characterized the microbial composition of slurry, and identified novel viruses. We assembled a remarkable total of 1792 viral genomes, of which 554 were novel/divergent. We assembled 1637 Picobirnavirus genome segments, of which 538 are novel. In addition, we discovered 10 new viruses belonging to a novel taxon: porcine Statoviruses; which have only been previously reported in human, macaques, mouse, and cows. We assembled 3 divergent Posaviruses and 3 swine Picornaviruses. In addition to viruses described, we found other eukaryotic genera such as Entamoeba and Blastocystis, and bacterial genera such as Listeria, Treponema, Peptoclostridium and Bordetella in the slurry. Of these, two species Entamoeba histolytica and Listeria monocytogenes known to cause human disease were detected. Further, antimicrobial resistance genes such as tetracycline and MLS (macrolide, lincosamide, streptogramin) were also identified. Metagenomic surveillance in swine fecal slurry has great potential for novel and antimicrobial resistant pathogen detection.
Collapse
Affiliation(s)
- Akshaya Ramesh
- Weill Institute for Neurosciences, University of California, San Francisco, CA, 94158, USA.,Department of Neurology, University of California, San Francisco, CA, 94158, USA.,Julia Jones Matthews Department of Public Health, Texas Tech University Health Sciences Center, Abilene, TX, USA
| | - Emily S Bailey
- Division of Infectious Diseases, Duke University School of Medicine, Durham, NC, USA. .,Julia Jones Matthews Department of Public Health, Texas Tech University Health Sciences Center, Abilene, TX, USA.
| | - Vida Ahyong
- Chan Zuckerberg Biohub, San Francisco, CA, 94158, USA
| | - Charles Langelier
- Chan Zuckerberg Biohub, San Francisco, CA, 94158, USA.,Division of Infectious Diseases, University of California San Francisco, San Francisco, CA, 94158, USA
| | - Maira Phelps
- Chan Zuckerberg Biohub, San Francisco, CA, 94158, USA
| | - Norma Neff
- Chan Zuckerberg Biohub, San Francisco, CA, 94158, USA
| | - Rene Sit
- Chan Zuckerberg Biohub, San Francisco, CA, 94158, USA
| | - Cristina Tato
- Chan Zuckerberg Biohub, San Francisco, CA, 94158, USA
| | - Joseph L DeRisi
- Chan Zuckerberg Biohub, San Francisco, CA, 94158, USA.,Department of Biochemistry and Biophysics, University of California, San Francisco, CA, 94158, USA
| | - Annette G Greer
- Department of Bioethics and Interdisciplinary Studies, Brody School of Medicine, North Carolina Agromedicine Institute, East Carolina University, Greenville, NC, USA
| | - Gregory C Gray
- Division of Infectious Diseases, Duke University School of Medicine, Durham, NC, USA.,Duke Global Health Institute, Duke University, Durham, NC, USA.,Emerging Infectious Disease Program, Duke-NUS Medical School, Singapore, Singapore.,Global Health Center, Duke Kunshan University, Kunshan, China
| |
Collapse
|
4
|
Rhodes S, Christenson E, Nguyen A, Larsen J, Price LB, Stewart J. Getting ahead of antibiotic-resistant Staphylococcus aureus in U.S. hogs. ENVIRONMENTAL RESEARCH 2021; 196:110954. [PMID: 33676950 PMCID: PMC8119327 DOI: 10.1016/j.envres.2021.110954] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 02/24/2021] [Accepted: 02/26/2021] [Indexed: 06/12/2023]
Abstract
Antibiotic-resistant strains of Staphylococcus aureus, an opportunistic bacterial pathogen, have emerged in industrial livestock operations and agricultural settings. In the United States, there is limited access to industrial livestock operations and farm-level antibiotic use data. As a result, studies often rely on retail meat as a proxy for direct animal sampling. To move beyond this limitation and assess S. aureus colonization in hogs, we purchased the heads of recently-slaughtered hogs and compared S. aureus populations in those raised on industrial hog operations versus those raised without antibiotics. S. aureus isolates were analyzed for antibiotic resistance and putative genotypic markers of livestock adaptation. Although methicillin-resistant S. aureus (MRSA) was not detected in this study, all of the hogs from industrial hog operations (n = 9/9) carried multidrug-resistant S. aureus (MDRSA) with two livestock-adaptation markers (scn-negative and clonal complex (CC) 9 or 398) compared to 11% of hogs raised without antibiotics (n = 1/9). Hogs from industrial operations were 9.0 times (95% confidence interval (CI): 1.4-57.1) as likely to carry livestock-adapted S. aureus and 4.5 times (95% CI: 1.3-15.3) as likely to carry MDRSA as hogs raised without antibiotics. In contrast, the majority of antibiotic-free hogs (67%, n = 6/9) contained human-adapted S. aureus (i.e. scn-positive, CC1) compared to 11% (n = 1/9) of IHO hogs. These results indicate that antibiotic use in IHO hogs may make them more conducive hosts to antibiotic-resistant, livestock-adapted S. aureus strains when compared to hogs raised without antibiotics. Our results are important, as they provide strong evidence that antibiotic use practices influence the S. aureus populations carried by U.S. hogs, supporting the need for increased access to routine monitoring of hog operations for antibiotic resistance management using a One Health framework.
Collapse
Affiliation(s)
- Sarah Rhodes
- Gillings School of Global Public Health, Department of Environmental Sciences & Engineering, University of North Carolina at Chapel Hill, 27599, USA
| | - Elizabeth Christenson
- Gillings School of Global Public Health, Department of Environmental Sciences & Engineering, University of North Carolina at Chapel Hill, 27599, USA.
| | - Allie Nguyen
- Gillings School of Global Public Health, Department of Environmental Sciences & Engineering, University of North Carolina at Chapel Hill, 27599, USA
| | - Jesper Larsen
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - Lance B Price
- Milken Institute School of Public Health, Department of Environmental and Occupational Health, George Washington University, Washington DC, 20052, USA
| | - Jill Stewart
- Gillings School of Global Public Health, Department of Environmental Sciences & Engineering, University of North Carolina at Chapel Hill, 27599, USA
| |
Collapse
|
5
|
Okorie-Kanu OJ, Anyanwu MU, Ezenduka EV, Mgbeahuruike AC, Thapaliya D, Gerbig G, Ugwuijem EE, Okorie-Kanu CO, Agbowo P, Olorunleke S, Nwanta JA, Chah KF, Smith TC. Molecular epidemiology, genetic diversity and antimicrobial resistance of Staphylococcus aureus isolated from chicken and pig carcasses, and carcass handlers. PLoS One 2020; 15:e0232913. [PMID: 32407414 PMCID: PMC7224487 DOI: 10.1371/journal.pone.0232913] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 04/23/2020] [Indexed: 12/18/2022] Open
Abstract
The epidemiology of Staphylococcus aureus in food animals, associated products, and their zoonotic potential in Nigeria are poorly understood. This study aimed to provide data on the prevalence, genetic characteristics and antimicrobial resistance of S. aureus isolated from chicken and pig carcasses, and persons in contact with the carcasses at slaughterhouses in Nigeria. Surface swabs were collected randomly from 600 chicken and 600 pig carcasses. Nasal swabs were collected from 45 workers in chicken slaughterhouses and 45 pig slaughterhouse workers. S. aureus isolates were analyzed by spa typing. They were also examined for presence of the Panton-Valentine Leucocidin (PVL) and mecA genes, as well as for antimicrobial resistance phenotype. Overall, 53 S. aureus isolates were recovered (28 from chicken carcasses, 17 from pig carcasses, 5 from chicken carcass handlers and 3 from pig carcass handlers). Among the isolates, 19 (35.8%) were PVL-positive and 12 (22.6%) carried the mecA gene. The 53 isolates belonged to 19 spa types. The Based Upon Repeat Pattern (BURP) algorithm separated the isolates into 2 spa-clonal complexes (spa-CC) and 9 singletons including 2 novel spa types (t18345 and t18346). The clonal complexes (CC) detected were CC1, CC5, CC8, CC15, CC88 and CC152. CC15-related isolates represented by spa type t084 (32.1%) and CC5 represented by spa type t311 (35.3%) predominated among isolates from chicken carcasses/ handlers, and pig carcasses/ handlers, respectively. Multidrug resistance exhibited by all the CC except CC8, was observed among isolates from chicken carcasses (64.3%), pig carcasses (41.2%), handlers of chicken meat (40.0%) and handlers of pork (33.3%). All the CC showed varying degrees of resistance to tetracycline while CC15 and CC5 exhibited the highest resistance to sulphamethoxazole/trimethoprim and erythromycin, respectively. The predominant antimicrobial resistance pattern observed was penicillin-tetracycline-sulphamethoxazole/trimethoprim (PEN-TET-SXT). In conclusion, food animals processed in Enugu State in Southeast Nigeria are potential vehicles for transmission of PVL-positive multiple-drug resistant S. aureus and methicillin-resistant S. aureus from farm to slaughterhouse and potentially to the human population. Public health intervention programs at pre- and post-slaughter stages should be considered in Nigerian slaughterhouses.
Collapse
Affiliation(s)
- Onyinye J. Okorie-Kanu
- Department of Veterinary Public Health and Preventive Medicine, University of Nigeria, Nsukka, Enugu State, Nigeria
- * E-mail:
| | - Madubuike U. Anyanwu
- Microbiology Unit, Department of Veterinary Microbiology and Pathology, University of Nigeria, Nsukka, Enugu State, Nigeria
| | - Ekene V. Ezenduka
- Department of Veterinary Public Health and Preventive Medicine, University of Nigeria, Nsukka, Enugu State, Nigeria
| | - Anthony C. Mgbeahuruike
- Microbiology Unit, Department of Veterinary Microbiology and Pathology, University of Nigeria, Nsukka, Enugu State, Nigeria
| | - Dipendra Thapaliya
- Department of Biostatistics, Environmental Health Sciences and Epidemiology, Kent State University, Kent, Ohio, United States of America
| | - Gracen Gerbig
- Department of Biostatistics, Environmental Health Sciences and Epidemiology, Kent State University, Kent, Ohio, United States of America
| | - Ejike E. Ugwuijem
- Department of Microbiology, University of Nigeria, Nsukka, Enugu State, Nigeria
| | - Christian O. Okorie-Kanu
- Department of Veterinary Pathology, Michael Okpara University of Agriculture, Umudike, Abia State, Nigeria
| | - Philip Agbowo
- Department of Veterinary Public Health and Preventive Medicine, University of Nigeria, Nsukka, Enugu State, Nigeria
| | - Solomon Olorunleke
- Department of Veterinary Public Health and Preventive Medicine, University of Nigeria, Nsukka, Enugu State, Nigeria
| | - John A. Nwanta
- Department of Veterinary Public Health and Preventive Medicine, University of Nigeria, Nsukka, Enugu State, Nigeria
| | - Kennedy F. Chah
- Microbiology Unit, Department of Veterinary Microbiology and Pathology, University of Nigeria, Nsukka, Enugu State, Nigeria
| | - Tara C. Smith
- Department of Biostatistics, Environmental Health Sciences and Epidemiology, Kent State University, Kent, Ohio, United States of America
| |
Collapse
|
6
|
Graham DW, Bergeron G, Bourassa MW, Dickson J, Gomes F, Howe A, Kahn LH, Morley PS, Scott HM, Simjee S, Singer RS, Smith TC, Storrs C, Wittum TE. Complexities in understanding antimicrobial resistance across domesticated animal, human, and environmental systems. Ann N Y Acad Sci 2020; 1441:17-30. [PMID: 30924539 PMCID: PMC6850694 DOI: 10.1111/nyas.14036] [Citation(s) in RCA: 87] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 01/28/2019] [Accepted: 01/29/2019] [Indexed: 12/31/2022]
Abstract
Antimicrobial resistance (AMR) is a significant threat to both human and animal health. The spread of AMR bacteria and genes across systems can occur through a myriad of pathways, both related and unrelated to agriculture, including via wastewater, soils, manure applications, direct exchange between humans and animals, and food exposure. Tracing origins and drivers of AMR bacteria and genes is challenging due to the array of contexts and the complexity of interactions overlapping health practice, microbiology, genetics, applied science and engineering, as well as social and human factors. Critically assessing the diverse and sometimes contradictory AMR literature is a valuable step in identifying tractable mitigation options to stem AMR spread. In this article we review research on the nonfoodborne spread of AMR, with a focus on domesticated animals and the environment and possible exposures to humans. Attention is especially placed on delineating possible sources and causes of AMR bacterial phenotypes, including underpinning the genetics important to human and animal health.
Collapse
Affiliation(s)
- David W Graham
- School of Engineering, Newcastle University, Newcastle, UK
| | | | | | - James Dickson
- Department of Animal Science, Iowa State University, Ames, Iowa
| | | | - Adina Howe
- The New York Academy of Sciences, New York, New York
| | - Laura H Kahn
- Woodrow Wilson School of Public International Affairs, Princeton University, Princeton, New Jersey
| | - Paul S Morley
- Department of Large Animal Clinical Science, Texas A&M University, Canyon, Texas, USA
| | - H Morgan Scott
- Department of Veterinary Pathobiology, Texas A&M University, College Station, Texas
| | | | - Randall S Singer
- Department of Veterinary and Biomedical Sciences, University of Minnesota, St. Paul, Minnesota
| | - Tara C Smith
- College of Public Health, Kent State University, Kent, Ohio
| | | | - Thomas E Wittum
- Department of Veterinary Preventive Medicine, Ohio State University, Columbus, Ohio
| |
Collapse
|
7
|
Yuan W, Liu J, Zhan Y, Wang L, Jiang Y, Zhang Y, Sun N, Hou N. Molecular typing revealed the emergence of pvl-positive sequence type 22 methicillin-susceptible Staphylococcus aureus in Urumqi, Northwestern China. Infect Drug Resist 2019; 12:1719-1728. [PMID: 31354320 PMCID: PMC6590632 DOI: 10.2147/idr.s202906] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 05/21/2019] [Indexed: 02/04/2023] Open
Abstract
Background Staphylococcus aureus is among the most common causes of health care- and community-associated infections worldwide. The distributions of different S. aureus clones change over time and also vary geographically. The purpose of this study was to determine the molecular type and antimicrobial resistance profiles of clinical S. aureus strains isolated in Urumqi, Northwestern China. Methods A total of 605 clinical S. aureus isolates were collected from Xinjiang Military General Hospital, in Urumqi. Protein A-encoding (spa) typing, multilocus sequence typing, staphylococcal chromosomal cassette mec typing, Panton-Valentine leucocidin (pvl) gene detection, and antimicrobial resistance profiling were performed. Results Among these strains, 271 isolates (44.7%) were methicillin-resistant S. aureus (MRSA) and 334 (55.3%) were methicillin-susceptible S. aureus (MSSA). The MRSA strains consisted of 22 spa types and 14 sequence types (STs). ST239-MRSA-III-t030 (73.1%, 198/271) and ST59-MRSA-IV-t437 (11.8%, 32/271) were the most common, and ST22-MRSA-IV-t309 was the rarest (2.02%, 6/271). The MSSA strains consisted of 93 spa types and 29 STs. ST22, ST121, ST398, ST5, ST7, ST188, and ST15 were the main MSSA STs, and ST22-MSSA-t309 was most common (26.0%, 87/334). The pvl gene was present in 20.3% of all S.aureus strains, and 80.8% (88/99) of ST22-MSSA strains harbored the pvl gene. A total of 85.7% pvl-positive ST22-MSSA strains were spa t309 (85/99), and 87.5% of pvl-positive ST22-MSSA strains were from abscesses or wounds (skin and soft tissue infections). All ST239-MRSA strains were resistant to gentamicin (GEN), levofloxacin (LEV), ciprofloxacin (CIP), moxifloxacin (MXF), rifampicin (RIF), and tetracycline (TET). Among the ST59-MRSA strains, over 70.0% were resistant to erythromycin (ERY), clindamycin (CLI), and TET. ST22-MSSA remained susceptible to most antibiotics, but was resistant to PEN (97.0%), ERY (57.6%), and CLI (15.2%). Conclusion Our major results indicated that the antimicrobial resistance profiles and pvl genes of S. aureus isolates from Urumqi were closely associated with clonal lineage. ST239-MRSA-III-t030 and pvl-positive ST22-MSSA-t309 were the most common clones in this region of Northwestern China.
Collapse
Affiliation(s)
- Wenchang Yuan
- Department of Clinical Laboratory, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510700, People's Republic of China.,Department of Clinical Laboratory, General Hospital of Xinjiang Military Region, Urumqi 830001, People's Republic of China
| | - Jianhua Liu
- Department of Clinical Laboratory, General Hospital of Xinjiang Military Region, Urumqi 830001, People's Republic of China.,Department of Intensive Care Unit, the Fourth Hospital of Changsha, Changsha 410006, People's Republic of China
| | - Youchao Zhan
- Department of Clinical Laboratory, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510700, People's Republic of China
| | - Li Wang
- Department of Clinical Laboratory, General Hospital of Xinjiang Military Region, Urumqi 830001, People's Republic of China
| | - Yanqiong Jiang
- Department of Clinical Laboratory, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510700, People's Republic of China
| | - Yanling Zhang
- Department of Clinical Laboratory, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510700, People's Republic of China
| | - Ning Sun
- Department of Clinical Laboratory, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510700, People's Republic of China.,State Key Laboratory of Chemical Biology and Drug Discovery, and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, People's Republic of China
| | - Ning Hou
- Department of Clinical Laboratory, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510700, People's Republic of China.,School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou 511436, People's Republic of China
| |
Collapse
|
8
|
Cuny C, Layer F, Hansen S, Werner G, Witte W. Nasal Colonization of Humans with Occupational Exposure to Raw Meat and to Raw Meat Products with Methicillin-Susceptible and Methicillin-Resistant Staphylococcus aureus. Toxins (Basel) 2019; 11:toxins11040190. [PMID: 30935022 PMCID: PMC6521318 DOI: 10.3390/toxins11040190] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 03/25/2019] [Accepted: 03/28/2019] [Indexed: 11/16/2022] Open
Abstract
Livestock-associated methicillin-resistant Staphylococcus aureus (LA-MRSA) is widely disseminated as a nasal colonizer of conventionally raised livestock and of humans subjected to occupational exposure. Reports on contamination of raw meat raise the question as to whether occupationally exposed food handlers are at particular risk of nasal colonization by LA-MRSA. Here, we report the results from a cross-sectional study on nasal S. aureus/MRSA colonization of butchers, meat sellers, and cooks in Germany. We sampled 286 butchers and meat sellers in 26 butcheries and 319 cooks handling meat in 16 professional canteen kitchens. Swabs were processed on both blood agar plates and MRSA-selective plates. MRSA were confirmed by PCR for mec genes and by broth microdilution. All isolates were subjected to molecular typing. PCR for markers useful to differentiate human-adapted and animal-adapted subpopulations was performed due to the presence of clonal complexes known to occur in both livestock and humans (CC5, CC7, CC8, CC9, and CC398). Only two participants (0.33%) were colonized by MRSA (Hospital-associated MRSA ST22). Nasal colonization by methicillin-susceptible S. aureus (MSSA) was detected in 16.6% of cooks and in 26.2% of butchers and meat sellers. Among 16 of the isolates attributed to CC7, three were negative for the immune evasion gene cluster, suggesting an animal origin. Isolates attributed to CC5, CC8, and CC398 were negative for markers typical of animal-adapted subpopulations. The occupational handling of raw meat and raw meat products was not associated with nasal colonization by LA-MRSA.
Collapse
Affiliation(s)
- Christiane Cuny
- Robert Koch Institute, Wernigerode Branch, 38855 Wernigerode, Germany.
| | - Franziska Layer
- Robert Koch Institute, Wernigerode Branch, 38855 Wernigerode, Germany.
| | - Sonja Hansen
- Institute of Hygiene and Environmental Medicine, Charité, 12203 Berlin, Germany.
| | - Guido Werner
- Robert Koch Institute, Wernigerode Branch, 38855 Wernigerode, Germany.
| | - Wolfgang Witte
- Robert Koch Institute, Wernigerode Branch, 38855 Wernigerode, Germany.
| |
Collapse
|