'V-day' in Waterville.
D003140:Communicable Disease Control; D006761:Hospitals; D006801:Humans; D011055:Poliovirus Vaccine, Oral; D023321:Poliovirus Vaccines
D011055:Poliovirus Vaccine, Oral; D023321:Poliovirus Vaccines
COMMUNICABLE DISEASE CONTROL; HOSPITALS; POLIOVIRUS VACCINE, ORAL