Ключевые слова: biohazard, chemical, cleaning, contamination, control, covid, decontaminate, disease, disinfectant, epidemic, facemask, flu, health, human, infection, influenza, italy, laborer, man, mask, microbiology, mold, pandemia, pandemic, pathogen, prevention, professional, protective, quarantine, removing, room, safety, sanitize, specialist, spraying, spread, state of emergency, suit, uniform, usa, virology, virus, worker, workman,