According to the U.S. government, adults who skip their immunizations for a number of ailments including whooping cough and influenza are creating a health crisis. According to the Centers for Disease Control and Prevention, only 2.1% of adults aged 18 to 64 are immunized against tetanus, diphtheria and whooping cough, even though since 2006 there has been a combination vaccine that can protect against all three. (Source: WSJ)
The result could be a national push to get doctors to check immunization charts of their adult patients in much the same way they would for those under 18.