Ключевые слова: aids, biology, blood, blood sample, chemical, chemistry, clotted, copy space, corona virus, covid19, cure, dna, doctor, drug, edta, equipment, experiment, health care, illness, immunization, inject, injection, instrument, lab, laboratory, liquid, medical, medication, medicine, needle, pharmacy, plasma, plastic, positive, red, research, science, sickness, substance, syringe, test tube, therapy, treatment, vaccination, vaccine, virus,