In a village of 10,000 population there has been increasing cases of Cholera during the month of April. The village health authorities decided to conduct epidemiological study to assess reasons for...

In a village of 10,000 population there has been increasing cases of Cholera during the month of April. The village health authorities decided to conduct epidemiological study to assess reasons for the increasing number of cases. Which are the possible methods of epidemiological studies that can be undertaken to help the authorities to take prevention and control strategies?