ArticleBMC microbiology2025
Antibiotic resistance profile of Campylobacter species recovered from some freshwater milieu in the Eastern Cape Province, South Africa.
Article in BMC microbiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundFreshwater is a major source of human waterborne infections caused by Campylobacter species. The extensive use of antibiotics is capable of causing the emergence and spread of Campylobacter strains that are resistant to the antibiotics, making campylobacteriosis more difficult to treat and persistent in the environment. This study evaluated the occurrence and antimicrobial resistance profiles of Campylobacter species in freshwater from the Eastern Cape Province, South Africa. MATERIALS AND
methodsSixty-one freshwater samples were collected, yielding 302 presumptive Campylobacter isolates. PCR assays confirmed 78 isolates as belonging to Campylobacter species, identifying 35 (45%) as C. jejuni, 29 (37%) as C. coli, and 14 (18%) as C. lari. Antibiotic susceptibility testing was conducted to determine resistance patterns.
resultsThe isolates showed high resistance to erythromycin (90%) and low resistance to gentamicin (11.58%). The most frequently observed resistance pattern was C-LEV-NA-AZM-CIP-AMP-IMI-GM-DO-S-TE-E for C. lari, C-LEV-NA-AZM-CIP-AMP-GM-DO-S-TE-E for C. jejuni, and C-LEV-NA-AZM-CIP-AMPI-GM-DO-TE-E for C. coli. (Chloramphenicol, Levofloxacin, Nalidixic acid, Azithromycin, Ciprofloxacin, Ampicillin, Imipenem, Gentamicin, Doxycycline, Streptomycin, Tetracycline, and Erythromycin). Most isolates had multiple antibiotic resistance (MAR) indices greater than 0.2. Genetic analysis revealed imipenem resistance genes (bla
conclusionThe study shows that antimicrobial-resistant and potentially virulent Campylobacter strains are present in the freshwater environments in the Eastern Cape Province, posing a potential public health risk. However, surveillance systems and public awareness about campylobacteriosis and its transmission routes can reduce infection rates.
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