*3.3. Multiple Antibiotic-Resistance Index (MARI)*

MARI of the isolates were expressed using the formula MARI = *w*/(*uxv*), as explained above. For the sampling site, the multiple antibiotic resistance index (MARI) is estimated at 0.0514.

The summation score was obtained from the total sum of MAR Index isolates from each sampling point, and the MARI value was calculated for the six sampling points.
