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单词 index case
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index case
index case n. Medicine the case with which the investigation of a connected group of cases of infectious or hereditary disease begins (cf. proband n.); (also) an individual believed to be the source of an outbreak of infectious disease; cf. index patient n. at Additions.
ΘΚΠ
the world > health and disease > ill health > a disease > production of disease > [noun] > person or population > carrier > specific
Typhoid Mary1909
index case1936
1936 Milbank Memorial Fund Q. 14 321 The families were divided into three groups: (1) those in which the index case was pulmonary tuberculosis, (2) families in which the index case was a child with positive tuberculin, and (3) those in which the index case was one of tuberculous meningitis.
1995 Sci. Amer. Sept. 28/3 Ebola kills so quickly that it leaves few tracks. The index case—the person who first encountered the virus and then passed it on to others—is typically dead.
2006 S. Johnson Ghost Map 177 If Snow was right, there had to be, in the language of modern epidemiology, an index case, an original cholera victim whose evacuations had somehow found their way into the Broad Street well.
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