Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: Pakistan Flocculent Health Outcome Study
Brief Summary: This study is designed to evaluate the effect of different methods of drinking water treatment on the occurrence of diarrhea among children living in squatter settlements in Karachi, Pakistan, and the marginal benefit of adding handwashing to water treatment. 260 households will receive a new product which combines flocculation with chlorination to produce clearer, less chemically contaminated drinking water. 260 households will receive dilute sodium hypochlorite, i.e. bleach to treat their water. 260 households will receive soap and encouraged to wash their hands regularly. 260 households will receive both soap and the combination flocculation/chlorination water treatment. 260 households will continue their standard water treatment and handwashing practices. The households will be visited each week for 9 months, and the episodes of diarrhea from each child in the household recorded. The rate of diarrhea between the groups will be compared. At the end of 9 months, households who were part of the standard habits and practice group will receive a water storage vessel and disinfectant.


Options:
A: Arm Label: Water Quality; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Water Quality | Arm Label: Sanitation; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Sanitation | Arm Label: Handwashing; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Handwashing | Arm Label: Combined Water, Sanitation, and Handwashing; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Water Quality, Behavioral: Sanitation, Behavioral: Handwashing | Arm Label: Nutrition; Type: ACTIVE_COMPARATOR; Interventions: Dietary Supplement: Nutrition | Arm Label: Nutrition + Combined Water, Sanitation, and Handwashing; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Water Quality, Behavioral: Sanitation, Behavioral: Handwashing, Dietary Supplement: Nutrition | Arm Label: Active control arm; Type: NO_INTERVENTION; Interventions: N/A | Arm Label: Passive control arm; Type: NO_INTERVENTION; Interventions: N/A | Intervention Type: BEHAVIORAL; Name: Water Quality; Assigned to Arm(s): Combined Water, Sanitation, and Handwashing, Nutrition + Combined Water, Sanitation, and Handwashing, Water Quality | Intervention Type: BEHAVIORAL; Name: Sanitation; Assigned to Arm(s): Combined Water, Sanitation, and Handwashing, Nutrition + Combined Water, Sanitation, and Handwashing, Sanitation | Intervention Type: BEHAVIORAL; Name: Handwashing; Assigned to Arm(s): Combined Water, Sanitation, and Handwashing, Handwashing, Nutrition + Combined Water, Sanitation, and Handwashing | Intervention Type: DIETARY_SUPPLEMENT; Name: Nutrition; Assigned to Arm(s): Nutrition, Nutrition + Combined Water, Sanitation, and Handwashing
B: Arm Label: Handwashing; Type: EXPERIMENTAL; Interventions: Other: handwashing | Arm Label: handwashing and water treatment; Type: EXPERIMENTAL; Interventions: Other: handwashing, Other: flocculent-disinfectant for water treatment | Arm Label: Water treatment with sodium hypochlorite; Type: EXPERIMENTAL; Interventions: Other: water treatment with sodium hypochlorite | Arm Label: Water treatment with flocculent-disinfectant; Type: EXPERIMENTAL; Interventions: Other: flocculent-disinfectant for water treatment | Arm Label: Control; Type: NO_INTERVENTION; Interventions: N/A | Intervention Type: OTHER; Name: handwashing; Assigned to Arm(s): Handwashing, handwashing and water treatment | Intervention Type: OTHER; Name: flocculent-disinfectant for water treatment; Assigned to Arm(s): Water treatment with flocculent-disinfectant, handwashing and water treatment | Intervention Type: OTHER; Name: water treatment with sodium hypochlorite; Assigned to Arm(s): Water treatment with sodium hypochlorite
C: Arm Label: 1; Type: ACTIVE_COMPARATOR; Interventions: Drug: GB (Florestor) | Arm Label: 2; Type: ACTIVE_COMPARATOR; Interventions: Drug: GRALB | Arm Label: 3; Type: PLACEBO_COMPARATOR; Interventions: Drug: GC (placebo) | Intervention Type: DRUG; Name: GB (Florestor); Assigned to Arm(s): 1 | Intervention Type: DRUG; Name: GRALB; Assigned to Arm(s): 2 | Intervention Type: DRUG; Name: GC (placebo); Assigned to Arm(s): 3
D: Arm Label: Sanitation intervention; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Provision of household latrines | Arm Label: Control; Type: NO_INTERVENTION; Interventions: N/A | Intervention Type: BEHAVIORAL; Name: Provision of household latrines; Assigned to Arm(s): Sanitation intervention

Answer: B