Ключевые слова: biohazard, chemical, cleaning, company, contamination, control, corona, coronavirus, coronavirus disease 2019, covid, covid19, 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,