pertussis

noun

per·​tus·​sis pər-ˈtə-səs How to pronounce pertussis (audio)

Examples of pertussis in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Both schedules recommend that all children be vaccinated against measles, mumps, rubella, polio, pertussis, tetanus, diphtheria, Haemophilus influenzae type B (Hib), pneumococcal disease, human papillomavirus (HPV) and varicella (better known as chickenpox). Corinne Purtill, Los Angeles Times, 27 Jan. 2026 State law requires children entering school to be vaccinated against polio, measles, mumps and rubella and diphtheria, tetanus and pertussis. Jim Saunders, Sun Sentinel, 27 Jan. 2026 In November 2025, the first round of a vaccination catch-up campaign aimed at children under 3 successfully protected over 14,000 kids against measles, mumps and rubella, diphtheria, tetanus and pertussis, hepatitis B, tuberculosis, polio, rotavirus and pneumonia. Sarah Ferguson, Forbes.com, 20 Jan. 2026 Coverage for key vaccines such as MMR (measles, mumps, rubella), DTaP (diphtheria, tetanus, pertussis) and polio has dropped below the 95% threshold needed to prevent outbreaks of highly contagious diseases like measles. A.j. Russo, Baltimore Sun, 12 Jan. 2026 See All Example Sentences for pertussis

Word History

Etymology

New Latin, from Latin per- thoroughly + tussis cough

First Known Use

circa 1772, in the meaning defined above

Time Traveler
The first known use of pertussis was circa 1772

Browse Nearby Words

Cite this Entry

“Pertussis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pertussis. Accessed 1 Feb. 2026.

Kids Definition

pertussis

noun
per·​tus·​sis pər-ˈtəs-əs How to pronounce pertussis (audio)

Medical Definition

pertussis

noun
per·​tus·​sis pər-ˈtəs-əs How to pronounce pertussis (audio)

More from Merriam-Webster on pertussis

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!