bru·​cel·​lo·​sis | \ ˌbrü-sə-ˈlō-səs How to pronounce brucellosis (audio) \
plural brucelloses\ ˌbrü-​sə-​ˈlō-​ˌsēz How to pronounce brucellosis (audio) \

Definition of brucellosis

: infection with or disease caused by brucellae

Examples of brucellosis in a Sentence

Recent Examples on the Web Yellow fever, various forms of influenza, rabies, brucellosis and Lyme disease are among those that pass from animals to humans, often via a vector such as a rodent or an insect. Sam Kiley, CNN, "In the Congo rainforest, the doctor who discovered Ebola warns of deadly viruses yet to come," 22 Dec. 2020 The cultural herd passes through a quarantine system to prevent the spread of brucellosis, a disease feared by cattle ranchers. Brett Anderson, New York Times, "The Thanksgiving Myth Gets a Deeper Look This Year," 17 Nov. 2020 The Health Commission of Lanzhou, the capital city of Gansu province, confirmed that 3,245 people had contracted the disease brucellosis, which is often caused by contact with livestock carrying the bacteria brucella. Jessie Yeung And Eric Cheung, CNN, "Bacterial outbreak infects thousands after factory leak in China," 17 Sep. 2020 State and federal officials want to reduce Yellowstone’s bison herds by up to 900 animals this winter under an agreement intended to shield Montana’s cattle industry from the disease brucellosis. USA TODAY, "Mormon crickets, luchador grackle, buried treasure: News from around our 50 states," 3 Mar. 2020 To prevent the spread of diseases like bovine tuberculosis and brucellosis, the USDA needs to identify and track livestock. The Editorial Board, WSJ, "Cowboy Regulators Need to be Lassoed," 5 Mar. 2020 Another concern ranchers have with bison is a disease called brucellosis, which causes miscarriages and infertility in livestock, and can be transmitted to humans. National Geographic, "Two visions collide amid push to restore Montana plains," 16 Jan. 2020 The shipment includes bison and their descendants who were trapped to prevent the spread of the disease brucellosis. USA TODAY, "Liquid oozes onto highway, red squirrels rising, floods, oysters, exploding ATM: News from around our 50 states," 24 Dec. 2019 Officials say the plan includes putting 110 bison into brucellosis quarantine to produce disease-free bison. USA TODAY, "First Spouse Dolls, Snowstang, sand sculpture: News from around our 50 states," 7 Dec. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'brucellosis.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of brucellosis

1930, in the meaning defined above

History and Etymology for brucellosis

New Latin

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Time Traveler for brucellosis

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The first known use of brucellosis was in 1930

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Last Updated

8 Jan 2021

Cite this Entry

“Brucellosis.” Dictionary, Merriam-Webster, Accessed 18 Jan. 2021.

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More Definitions for brucellosis


bru·​cel·​lo·​sis | \ ˌbrü-sə-ˈlō-səs How to pronounce brucellosis (audio) \
plural brucelloses\ -​ˌsēz How to pronounce brucellosis (audio) \

Medical Definition of brucellosis

1 : a disease of domestic animals caused by bacteria of the genus Brucella (Brucella melitensis of goats, B. suis of swine and rarely cattle, B. abortus of cattle and rarely swine, and B. canis of dogs) and is marked especially by abortion — see bang's disease, contagious abortion
2 : an acute or chronic disease of humans that is acquired especially through direct contact with animals or animal products (as unpasteurized milk) infected with bacteria of the genus Brucella and is characterized by fever, fatigue, joint and muscle pain, loss of appetite, and swelling of internal organs (as the liver or heart)

called also Malta fever, Mediterranean fever, undulant fever

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