疫えき学がく調ちょう査さ

noun

epidemiological investigation; epidemiological survey

Formal term used in public health and medical contexts for systematic data collection and analysis of disease patterns.

• 保ほ健けん所じょが食しょく中ちゅう毒どくの疫えき学がく調ちょう査さを始はじめた。

  The public health center launched an epidemiological investigation of the food poisoning.

• 疫えき学がく調ちょう査さの結けっ果か、感かん染せん源げんが特とく定ていされた。

  As a result of the epidemiological survey, the source of infection was identified.