Skip directly to search Skip directly to A to Z list Skip directly to navigation Skip directly to page options Skip directly to site content

Case file: Whoopie Doopies

  • Real name: pertussis
  • Known aliases: bordetella pertussis (the bacteria that causes pertussis illness); whooping cough (for the “whoop” sound of someone gasping for air after a coughing spell)
  • Microbe type: bacterium

Cartoon Drawing of the Whoopie Doopies Real name: pertussis


Pertussis leaves its victims literally gasping for air. At first, this tricky pretender might seem like a basic cold—runny nose, fever, and cough. That’s Stage 1, when pertussis is just warming up. After a week or two, pertussis infection delivers its cruel surprises—thick, gluey mucus and extreme coughing spells. In these fits, people can literally cough so hard and long that they throw up or turn blue because they can’t breathe. Victims of pertussis make a gasping “whoop” sound when they suck in air after a coughing fit. Pertussis infection is no joke—about 20% of people who get it wind up in the hospital! Weeks after Stage 2, as the body finally fends off pertussis, the victims’ cough tapers down.


Pertussis is highly contagious (easy to catch). Want proof? A person with pertussis will infect almost everyone in his or her household if those people aren’t vaccinated.


Pertussis is primarily an “air attacker”. When an infected person coughs or sneezes, it flys through the air looking for its next victim. The bacterium may also infect people who first touch places where wetness from those coughs and sneezes lands, and then touch their noses or mouths.


Pertussis fears these four little letters: D, T, aP. The vaccine now used to prevent pertussis is called “DTaP” (D for diphtheria, T for tetanus, and aP for acellular pertussis). The term “acellular” (pronounced A-SELL-you-lur) means that the vaccine uses pieces of pertussis bacteria (not the whole bacterium cell). By using just pieces, the vaccine can “teach” the body to protect itself without as many vaccine side effects. Since the days before the vaccine, pertussis cases are down 97%.

Pertussis may be tough, but some simple basics can help to keep it in check—like washing hands with soap, covering up coughs and sneezes, and not sharing cups and silverware.


Pertussis is a bully, slamming young children and babies the hardest. Very small kids are just not as able to cough up the gluey mucus as bigger people are. Also, other bacterial infectors just love to join pertussis’ party, moving into a sick person’s pertussis-infected lungs and throat to cause their own infections. These are called “secondary infections.” Pertussis mostly pulls off its complications among small children, too—such as pneumonia, seizures, and encephalopathy (disease of the brain).


Stay vigilant. We may think we’ve gotten the upper hand against pertussis. But, the disease is always scheming to get back on top. Since the 1980s, doctors have been reporting increasing numbers of pertussis cases. At the moment, there are still far fewer cases than there were before the vaccine. Still, the number of people infected seems to peak every 3 or 4 years, showing that pertussis is still out there figuring out its next move.


Pertussis operates worldwide. It is especially busy and deadly in developing areas of the world, where fewer people are vaccinated and medical care is less accessible. Pertussis infects millions of people each year, and claims hundreds of thousands of lives.


Doctors have been dealing with pertussis for at least 500 years. Finally, in 1906, scientists were able to identify and see Bordetella pertussis bacteria through a microscope—a first step in learning how to stop its evil tricks. From 1940 to 1945, before the vaccine was widely used, 175,000 people in the U.S. were infected each year. In the 1940s, vaccinating against pertussis became routine and the tables turned for the better. Now, about 7,000-12,000 people are infected each year, and very few die.

Immune Platoon Disease Database


Error processing SSI file
Error processing SSI file