Step 8 Replace Cap 417244324

Tags: break equipment push close medical insert replace hands nose gloves hospital lines thumb patient test tube sample lab collection cap outline virus forefinger analysis wrapper saliva examine prevent prevention swab specimen nostril contagious nasal tightly PCR onto septum black and white cotton swabs nasopharynx nasal swab step 8 covid 19 respiratory viral open collection swab shaft nasopharyngeal flocked swabs