Tolerability and Measurability of the Efficacy of Non Pharmaceutical Measures to Prevent Seasonal Influenza
With this study the investigators will try to assess the tolerability and measurability of the efficacy of non pharmaceutical measures to prevent seasonal influenza in individual households. Households with an identified index case of influenza will be randomised into one of three intervention arms: 1. group, where the household will receive general information about transmission of influenza virus and means to prevent it (Controls); 2. group, which will receive surgical masks and be asked to wear them whenever they are in close contact with the index case or other persons of the household that became ill during the observation period; 3. group, which will be given and asked to wear surgical masks as well as to execute intensified hand hygiene.
In addition to assessing the secondary attack rate as our primary outcome measure, the investigators will also try to evaluate compliance to those interventions by questionnaires.
A Randomized, Controlled, Unblinded, Clinical Trial of the Acceptability and Efficacy of Non-Pharmaceutical Methods in Preventing Spread of Influenza Within the Family
A Randomised Controlled Trial of Face Masks and Hand Hygiene in Reducing Influenza Transmission in Households
Intervention Study of Face Mask and Hand Sanitizer to Reduce Influenza Transmission