Epi Info 3.5.1 Downloading Page
Epi Info is a series of freely distributable programs for use by public health professionals in conducting outbreak investigations, managing databases for public health surveillance and other tasks, and general database and statistics applications

With Epi Info and a personal computer, physicians, epidemiologists, and other public health and medical workers can rapidly develop a questionnaire or form, customize the data entry process, and enter and analyze data

Produced by Centers for Disease Control and Prevention