What is an ''index'' case?

Question

and...

What is the first index case of ebola sudan?

Answer 1

It is the first reported case of ebola. DEADLY.

Answer 2

The index case,

primary case or patient zero is the initial patient in the population sample of an epidemiological investigation. Patient zero is a somewhat less specific term than index case and is sometimes used to refer to the central patient in an epidemiological investigation rather than the first patient.[citation needed] When used in general to refer to such patients in epidemiological investigations, the term is not capitalized. When the term is used to refer to a specific person in place of that person's name within a report on a specific investigation, the term is capitalized as Patient Zero. Often scientists search for the index case to determine how the disease spread and what reservoir holds the disease in between outbreaks. Note that the index case is the first patient that indicates the existence of an outbreak. Earlier cases may be found and are labeled primary, secondary, tertiary,

Known Cases and Outbreaks of Ebola Hemorrhagic Fever, in

Chronological Order

http://tinyurl.com/68gm5d