Hand Hygiene Intervention Study in Finnish Garrison

In this study the investigators aim to elucidate the possibility to reduce occurrence of infectious diseases in a garrison with enhanced and guided hand hygiene. The investigators will study occurrence and transmission of infections. In addition, the investigators will find out the causative agents of infections in a garrison with virological analyses of naso-pharyngeal and fecal specimens. The costs of lost service days and other expenses due to infectious diseases will be evaluated with a cost analysis study.