Association of Heavy Rainfall on Genotypic Diversity in V. cholerae Isolates from an Outbreak in India

Figure 2

Daily number of patients with acute diarrheal disease (ADD) including cholera and confirmed daily number of cholera cases admitted to Communicable Disease Hospital, Chennai, India, between Oct 27 and Nov 26, 2005. The daily rainfall is overlaid with the illness cases as bar graph. The first peak of illness was observed eight days after the first heavy rain storm on Oct. 27th. The second illness peak was found seven days after the second major rain storm on Nov. 6th.