Bacterium number measuring method and bacterium number measuring system

Abstract

Provided is a bacterium number measuring system comprising a database storing known bacterial growth patterns in advance and an analyzing part. The analyzing part has first cultures containing a bacterial liquid that contains a measurement target bacteria and second cultures being different from the first cultures and containing the bacterial liquid and an antimicrobial drug. The analyzing part performs bacterium number measurement which measures the number of bacteria in the first cultures on a culturing part where culturing has started in the first and second cultures. The analyzing part compares the bacterium number measurement result with the growth curves stored in the database and thereby determines a timing to perform MIC measurement which measures the number of bacteria in the second cultures to determine a minimum inhibitory concentration of the measurement target bacterium. The analyzing part performs the MIC measurement at the thus-determined timing.