Ключевые слова: army, attack, axe, bacteria, beating, cell, chop, corona, coronavirus, covid19, cut, danger, defense, detention, disease, epidemia, exploring, field, grass, green, health, helmet, illness, infection, influenza, meadow, model, molecule, mow, outdoor, pandemia, particle, prohibition, protection, quarantine, rescue, retrieval, sample, sars, spread, stopping, summer, ta, territorial, threat, transmission, virion, virus, weapon,