Whooping cough cases worst in half century

Pertussis, or whooping cough, is transmitted through inhalation of bacteria released by coughing or sneezing. Cilia in the respiratory tract help remove debris, but pertussis bacteria bind to cilia, releasing a toxin that disables them, leading to coughing fits. Symptoms include fever, runny nose, whooping cough, and diarrhea. In the US, children receive a 5-dose vaccine starting at 2 months, with a booster recommended at ages 11 or 12.

How is pertussis primarily spread among individuals?

• By inhaling bacteria from coughs and sneezes

• By touching infected surfaces

• Through direct contact with skin

• Through contaminated water

What role do cilia play in the respiratory system?

• They produce mucus

• They help remove debris from the lungs

• They absorb oxygen

• They filter blood

What happens when pertussis bacteria enter the lungs?

• They cause immediate fever

• They improve breathing

• They release a toxin that disables the cilia

• They strengthen the cilia

Which of the following is NOT a symptom of pertussis?

• Runny nose

• High-pitched whooping sound

• Diarrhea

• Rash

At what age is a booster vaccine for pertussis recommended in the US?

• Around 15 years old

• Around 2 years old

• Around 5 years old

• Around 11 or 12 years old