Ключевые слова: care, certification, device, disease, distancing, doctors, epidemic, flu, health, hospital, hospitals, hygiene, mandatory masks, mask production, masks, medical aids, medical device, medical instruments, medicine, nurses, obligation, pandemic, physician, precaution, prevention, prevention tools, prophylaxis, protection, selfprotection, sick, spread, surgical masks, therapy, tissue, trade, virus, virus spread, wards,