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parvovirus

(Encyclopedia)parvovirus pärˌvōvīˈrəs [key], any of several small DNA viruses that cause several diseases in animals, including humans. In humans, parvoviruses cause fifth disease, or erythema infectiosum, an...

brucellosis

(Encyclopedia)brucellosis bro͞oˌsəlōˈsĭs [key] or Bang's disease, infectious disease of farm animals that is sometimes transmitted to humans. In humans the disease is also known as undulant fever, Mediterrane...

Bretonneau, Pierre

(Encyclopedia)Bretonneau, Pierre pyĕr brətônōˈ [key], 1778–1862, French physician. He performed (1825) the first successful tracheotomy for laryngeal diphtheria, wrote a treatise (1826) distinguishing betwee...

Wagner-Jauregg, Julius

(Encyclopedia)Wagner-Jauregg, Julius yo͞oˈlyo͝os vägˈnər-youˈrĕk [key], 1857–1940, Austrian neurologist and pioneer in fever therapy. He was professor at the Univ. of Vienna from 1893 to 1928. He introduc...

Guayaquil

(Encyclopedia)Guayaquil gwīäkēlˈ [key], city, capital of Guayas prov., W Ecuador, on the Guayas River near ...

Rockefeller Foundation

(Encyclopedia)Rockefeller Foundation, philanthropic institution established (1913) by John D. Rockefeller, Sr., to promote “the well-being of mankind throughout the world.” During its first 14 years the foundat...

tropical medicine

(Encyclopedia)tropical medicine, study, diagnosis, treatment, and prevention of certain diseases prevalent in the tropics. The warmth and humidity of the tropics and the often unsanitary conditions under which so m...

pigment

(Encyclopedia)pigment, substance that imparts color to other materials. In paint, the pigment is a powdered substance which, when mixed in the liquid vehicle, imparts color to a painted surface. The pigments used i...

Zika virus

(Encyclopedia)Zika virus zēˈkə [key], single-stranded RNA virus of the genus flavivirus that infects human and primates and causes a disease known as Zika fever or zika. It is primarily transmitted by the bite o...

topaz

(Encyclopedia)topaz tōˈpăz [key], aluminum silicate mineral with either hydroxyl radicals or fluorine, Al2SiO4(F,OH)2, used as a gem. It is commonly colorless or some shade of pale yellow to wine-yellow; pale bl...