Molecular Detection of Antibiotic-Resistant Genes in Pseudomonas aeruginosa from Nonclinical Environment: Public Health Implications in Mthatha, Eastern Cape Province, South Africa

Table 5

Extended-spectrum β-lactamase (ESBL) and metallo-β-lactamase (MBL) gene types detected in nonclinical isolates of P. aeruginosa.

Positive by PCR for ESBL genes	Number amplified (N = 15)	Total (%)
A. Single ESBL gene
blaSHV	14	93.3
blaTEM	6	40.0
blaCTX-M	3	20.0
blaVIM	1	6.7
blaIMP	0	0
B. Two or more ESBL genes
blaTEM + blaSHV	6	40
blaTEM + blaCTX-M	3	20
blaSHV + blaCTX-M	3	20
blaSHV + blaVIM	1	6.7