Ключевые слова: 3d, asia, bacteria, bacterium, biology, cancer, cell, china, corona, corona virus, coronavirus, covid, covid19, death, diagnosis, diagnostic, disease, dominican republic, flag, flu, gonorrhea, health, hiv, hospital, hygiene, incubation, infect, infected, infection, influenza, leukaemia, leukemia, ma virus, medical, mucosa, mucous membranes, nature, organism, patient, science, sick, sickness, symptom, symptoms, therapy, transferable, viroid, virus,