Multiple antibiotic resistance indexing and molecular identification of <i>Escherichia coli</i> isolated from clinical and nonclinical sources in Port Harcourt Metropolis, Nigeria

the high levels of MAR indices in E. coli as presented in this study could be indicative of antibiotic treatment failures in both clinical and nonclinical settings, which can serve as a potential reservoir of drug-resistant E. coli that are harmful and therefore require continuous monitoring.