infectious disease

noun

: a disease (such as influenza, malaria, meningitis, rabies, or tetanus) caused by the entrance into the body of pathogenic agents or microorganisms (such as bacteria, viruses, protozoans, or fungi) which grow and multiply there compare communicable disease, contagious disease

Examples of infectious disease 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.
In 2023, tuberculosis overtook COVID-19 as the most deadly infectious disease, with 1.25 million people who died from infections. Eduardo Cuevas, USA TODAY, 29 Jan. 2025 In 2024, there were 65 active tuberculosis cases in Wyandotte County and 14 in Johnson County, according to the Kansas Department of Health and Environment’s infectious disease dashboard. Eleanor Nash, Kansas City Star, 28 Jan. 2025 As the head of HHS, there's a whole host of ways that Kennedy could change the landscape of childhood vaccines in the U.S., which infectious disease experts say could lead to a resurgence of infectious diseases among children, including meningitis and polio. Selena Simmons-Duffin, NPR, 28 Jan. 2025 Babies have the best chance of avoiding complications from syphilis if their mothers get treatment at least 30 days before their birth, said Dr. Sara Saporta-Keating, an assistant professor of pediatrics specializing in infectious disease at University of Colorado’s School of Medicine. Meg Wingerter, The Denver Post, 28 Jan. 2025 See all Example Sentences for infectious disease 

Word History

First Known Use

1600, in the meaning defined above

Time Traveler
The first known use of infectious disease was in 1600

Dictionary Entries Near infectious disease

Cite this Entry

“Infectious disease.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/infectious%20disease. Accessed 1 Feb. 2025.

Kids Definition

infectious disease

noun
: a disease caused by the presence, growth, and increase in numbers of germs in the body

Medical Definition

infectious disease

noun
: a disease (as influenza, malaria, meningitis, rabies, or tetanus) caused by the entrance into the body of pathogenic agents or microorganisms (as bacteria, viruses, protozoans, or fungi) which grow and multiply there compare communicable disease, contagious disease
Last Updated: - Updated example sentences
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