Please select the eligibility criteria that correspond to the clinical trial below.
Title: WASH Benefits Bangladesh: A Cluster Randomized Controlled Trial of the Benefits of Water, Sanitation, Hygiene Plus Nutrition Interventions on Child Growth
Brief Summary: Brief Summary:

The purpose of this study is to measure the independent and combined effects of interventions that improve water quality, sanitation, hand washing, and nutrition on child growth and development in the first years of life.


Options:
A: Inclusion Criteria:

(1) Infants (target child) will be eligible to participate in the study if they are:

1. They are in utero at the baseline survey
2. Their parents/guardians are planning to stay in the study village for the next 12 months (if a mother is planning to give birth at her natal home and then return, she will still be a candidate for enrollment)

(2) Children \< 36 months old at baseline that are living in the compound of a target child will be eligible to participate in diarrhea measurement if:

1. They are \< 36 months old at the baseline survey
2. Their parents/guardians are planning to stay in the study village for the next 12 months

(3) Children 18 - 27 months old at baseline that are living in the compound of a target child will be eligible to participate in intestinal parasite specimen collection if:

1. They are 18 - 27 months old at the baseline survey
2. Their parents/guardians are planning to stay in the study village for the next 12 months
B: Inclusion Criteria:

* Persons ≥ 5 years old: Influenza-like illness (ILI), defined as history of fever and either cough or sore throat with fever onset within the previous 24 hours
* Persons \< 5 years old: any child with acute fever with onset within the previous 24 hours
* Return to home within 24 hours of presentation to Upazilla Health Complex, Jahurul Islam Medical College Hospital or the local pharmacies; i.e., the index case cannot be admitted for treatment. If admitted, the patient would not be eligible.
* No fever in any bari resident during the 7 days preceding the patient's presentation to hospital (see definition below)
* At least two persons (in addition to the index case-patient) who intend to reside in the bari during the subsequent 20 days
* Residence within 30 minutes travel time (one-way) from the Upazilla Health Complex or Jahurul Islam Medical College Hospital or the local pharmacy.
C: Inclusion Criteria:

* all members of participating training facilities age 18 years or older who are not at increased risk for severe COVID-19 disease (see www.fhi.no for criteria) are eligible for participation if they

  * plan to use the training facility regularly during the project period
  * are willing to adhere to training policies during the project
  * accept assessment of project endpoints
  * approve handling of data for the project

Exclusion Criteria:

* COVId-19 related comorbidity
* Age below 18 years or above 64 years
D: Inclusion Criteria:

* Lower than 7 days from the positive SARS-COV-2 PCR test of a nasopharyngeal sample
* Have the ability to donate saliva samples and perform mouthwash

Exclusion Criteria:

* Patient participation in a COVID-19 research study using experimental drugs,
* Use of an antiseptic mouthwash for 48 h before the start of the study
* Any known hypersensitivity or allergy to components of the mouthwashes.

Answer: A