Hospital infections constitute the object of regulation in most European countries, as their impact in the increase of morbidity and medical costs is well known. This is a comparative study between Greek and French law systems about hospital infections. Thus, while the greek legislator has just announced basic institutions relating to the coping of these infections-that is Hospital Infections Committee in the Ministry of Health and corresponding Committees at hospital level-French law has been more pluralistic. Civil and administrative jurisdictions have created a very important jurisprudence, as far as the economic benefits of patients-victims of hospital infections are concerned. However, French legislation, according to the Law No 303/2002 has arranged definitely the problem of damages of these patients.