obročno cepljenje
obročno cepljenje
administering vaccine only to people in close contact with an isolated infected patient; prevents the spread of a highly infectious disease by surrounding the patient with a ring of immunization [administriranje cepiva le ljudem, ki so v tesnem stiku z izoliranim okuženim pacientom; preprečuje širjenje visoko nalezljive bolezni tako, da pacienta obdaja z obročem imunizacije]