Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: Tolerability and Measurability of the Efficacy of Non Pharmaceutical Measures to Prevent Seasonal Influenza
Brief Summary: 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.


Options:
A: Arm Label: Vitamin D and gargling; Type: EXPERIMENTAL; Interventions: Dietary Supplement: cholecalciferol (vitamin D3), Behavioral: Gargling | Arm Label: Vitamin D and general health advice; Type: EXPERIMENTAL; Interventions: Dietary Supplement: cholecalciferol (vitamin D3) | Arm Label: Placebo and general health advice; Type: PLACEBO_COMPARATOR; Interventions: Dietary Supplement: Placebo | Arm Label: Placebo and gargling; Type: PLACEBO_COMPARATOR; Interventions: Behavioral: Gargling, Dietary Supplement: Placebo | Intervention Type: DIETARY_SUPPLEMENT; Name: cholecalciferol (vitamin D3); Assigned to Arm(s): Vitamin D and gargling, Vitamin D and general health advice | Intervention Type: BEHAVIORAL; Name: Gargling; Assigned to Arm(s): Placebo and gargling, Vitamin D and gargling | Intervention Type: DIETARY_SUPPLEMENT; Name: Placebo; Assigned to Arm(s): Placebo and gargling, Placebo and general health advice
B: Arm Label: 1; Type: OTHER; Interventions: Other: Control | Arm Label: 2; Type: OTHER; Interventions: Device: Masks | Arm Label: 3; Type: OTHER; Interventions: Device: Masks & hand hygiene | Intervention Type: DEVICE; Name: Masks; Assigned to Arm(s): 2 | Intervention Type: DEVICE; Name: Masks & hand hygiene; Assigned to Arm(s): 3 | Intervention Type: OTHER; Name: Control; Assigned to Arm(s): 1
C: Arm Label: Facemask and hand hygiene; Type: EXPERIMENTAL; Interventions: Behavioral: Ear Loop Procedure Mask, Behavioral: 62% Ethyl Alcohol Hand Sanitizer | Arm Label: Facemask only; Type: EXPERIMENTAL; Interventions: Behavioral: Ear Loop Procedure Mask | Arm Label: Control; Type: NO_INTERVENTION; Interventions: N/A | Intervention Type: BEHAVIORAL; Name: Ear Loop Procedure Mask; Assigned to Arm(s): Facemask and hand hygiene, Facemask only | Intervention Type: BEHAVIORAL; Name: 62% Ethyl Alcohol Hand Sanitizer; Assigned to Arm(s): Facemask and hand hygiene
D: Arm Label: Vaccine arm; Type: ACTIVE_COMPARATOR; Interventions: Biological: ShanChol | Arm Label: Vaccine plus hygiene and safe water arm; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Vaccine and behaviour | Arm Label: Non-intervention arm; Type: NO_INTERVENTION; Interventions: N/A | Intervention Type: BIOLOGICAL; Name: ShanChol; Assigned to Arm(s): Vaccine arm | Intervention Type: BEHAVIORAL; Name: Vaccine and behaviour; Assigned to Arm(s): Vaccine plus hygiene and safe water arm

Answer: B