hand was holding forcep and dipped in the alcohol contained in the beaker.

ability agar alcohol antibiotic background bacteria bacterium beaker beauty biology biotechnology care clean closeup coli color contained ctinomyce culture cup diffusion dipped disc disease dishes doctor drink drug equipment filter finance finger flora forcep glass growth hand hands health holding hospital hygiene inhibit isolated lab laboratory manicure microorganisms nails paper petri prepared saeruginosa spa table techniques tests tongs wash washing water wedding white woman