I just went on a half-hour binge reading about pertussis, as a result of reading that WA state has an epidemic outbreak that the public health agencies are struggling to stop.
Reading people's first hand accounts of having it will cross your eyes in empathized pain. One person described that she has given birth, has suffered a compound fracture of a leg, has passed a kidney stone, and has had whopping cough. Only one of them made her wish for death. It's been described as feeling like an asthma attack while someone is punching you in the ribs. Oh, and most all cough medicines do pretty much nothing for it.
You, reading this. You. Right now, pick up your phone, and call your doctor's clinic. Ask them if you're up to date, and if you're not, go get your freaking DTaP shot. You can get one at Walgreen's for less than the cost of a high-end Starbucks drink. You owe it to yourself, you owe it to public health, you owe it to your friends and coworkers, and you owe it to every pregnant woman, every newborn, and every immunocompromised person you share this biosphere with.