Phylo-diversity of prevalent human E. coli O157:H7 with strains from retailed meat and fish in selected markets in Ibadan Nigeria.

Autor: Ayodele OA; Department of Medical Microbiology, University College Hospital, Ibadan, Nigeria., Deji-Agboola AM; Department of Medical Microbiology, Olabisi Onabanjo University, Sagamu, Nigeria., Akinduti PA; Microbiology Unit, Department of Biological Sciences, Covenant University, Otta, Nigeria., Faneye AO; Department of Virology, University of Ibadan, Ibadan, Nigeria.
Jazyk: angličtina
Zdroj: Journal of immunoassay & immunochemistry [J Immunoassay Immunochem] 2020; Vol. 41 (2), pp. 117-131. Date of Electronic Publication: 2019 Nov 24.
DOI: 10.1080/15321819.2019.1694942
Abstrakt: Global prevalence of ESBL-biotypes poses a serious threat to public health as a result of severity and morbidity caused by beta-lactam encoded Escherichia coli . Therefore, the prevalent shiga toxigenic Escherichia coli of ESBL variant was investigated in various retailed food animals and cooking materials. A total of 823 samples consisting of raw meat (297) and fish (132) samples retailed at various major markets in Ibadan were collected and 394 swabs were taken from the butchers' processing tables and utensils used in retailing meat and fish. The samples were cultured and biotyped for Escherichia coli . Serological and PCR assay were used to identify O157:H7 variant and antibiotics resistant determinants. Genetic relatedness of characterized E. coli O157 from human and meat products was evaluated with phylogenetic analysis. Of all the isolates, 130 (15.8%) were E. coli and only 8 (1.0) were O157:H7 while 4 (50%) were resistant to one or more antibiotics with resistance index ranging from 0.1 to 0.5. More than 25% E. coli O157:H7 were resistant to Ampicillin, Pefloxacin and Gentamicin and bla SHV and bla CTX-M were detected in 1/8 (12.5%) of E. coli O157:H7 and bla TEM 3/8 (37.5%) respectively. Only 1 genotyped human Escherichia coli .0157:H7 clustered with beef strain There is evidence of bla TEM encoded E. coli O157:H7 causing infection in human from food animals retailed in many markets within various communities. Therefore, urgent surveillance with public health education, food, and environmental hygiene are highly needed to prevent its spread.
Databáze: MEDLINE
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