Sign – Tomorrow’s Weather: Cold. Man pulling buggy in a snow storm, women on the street in big fur coats and hats, protecting themselves against the cold. Nurse looking in a male patient’s mouth. Nurse taking a swab and mixing in a test tube. Woman looking through a microscope, woman, scientist, speaking about viruses and the common cold. Immunity.
Keywords:USA, PUBLIC HEALTH, NURSE, SCIENCE, HOSPITAL, INOCULATION, DISEASE, VIRUS, TESTS