Ключевые слова: adult, adults only, advice, avoidance, bacterium, cold and flu, coronavirus, couple, covid19, dating, domestic life, elderly, epidemic, guidance, healthcare and medicine, healthy lifestyle, horizontal, illness, illness prevention, infectious disease, lifestyles, medicine, meeting, pandemic illness, people, pollution, position, prevention, protection, protective face mask, protective workwear, quarantine, relationship, relaxation, respiratory system, safety, senior man, senior woman, social distancing, social issues, spreading, two people, viral infection, virus, women,