Index case
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The index case (occasionally referred to as patient zero) is the first patient in a disease epidemic within a large population,[1] or the first documented patient included in an epidemiological study.[2]
References[change | change source]
- ↑ "Diseases – Activity 1 – Glossary, page 3 of 5". science.education.nih.gov. Retrieved 2017-11-10. CS1 maint: discouraged parameter (link)
- ↑ "WordNet Search – 3.0". Princeton University, wordnetweb.princeton.edu. Retrieved 3 November 2010. CS1 maint: discouraged parameter (link)