CORD-19:867ebb2be2d466bcb35e5a7319708eaff39c4799 / 249799-250104 JSONTXT

{"project":"Epistemic_Statements","denotations":[{"id":"T417","span":{"begin":0,"end":305},"obj":"Epistemic_statement"}],"text":"Improvement measures were subsequently developed and implemented as described below: (1) Check and wipe off the dust on the surface of UV lamp every week to avoid penetration reduction that might affect germicidal efficacy (executed by sanitary staff, and included the practice in the routine clean work)."}