Pertussis is commonly known as whooping cough. It is an extremely infectious bacteria that can lead to a violent, nasty cough that just will not seem to go away. Luckily, the DTaP vaccine has successfully eradicated most cases in children. However, according Dr. Tom Miller, as we get older, our immunity to the disease wanes and we can become susceptible in adulthood. Dr. Miller talks about pertussis, how you can catch it and how important it is to make sure you get your adult booster shots.