I just read this article from the New York Times outlining the CDC's concern about low vaccination rates among adults and it got me thinking. The CDC says only 2.1 percent of adults from 18-64 are immunized against tetanus, diphtheria and whooping cough. Here's a quote,
According to the Centers for Disease Control and Prevention, only 2.1 percent of adults ages 18 to 64 are immunized against tetanus, diphtheria and whooping cough, the journal reports. A vaccine against shingles is recommended for all adults over 60, but only 1.9 percent of adults have been immunized. Fewer than 30 percent of the adults at highest risk for flu complications get flu shots.
So, with a vaccination rate so low among adults, my question is where's the diphtheria outbreak? Where are the increased cases of tetanus? Where's all the whooping cough? Why aren't we seeing huge outbreaks of these diseases?
Are there other factors, besides vaccination, that mitigate people contracting and transmitting diseases? What might they be?