Please select the eligibility criteria that correspond to the clinical trial below.
Title: Sanitation, Hygiene, Infant Nutrition Efficacy Project
Brief Summary: Globally, stunting affects 26% (165 million) of under-5-year children, underlies 15-17% of their mortality and leads to long-term cognitive deficits, fewer years and poorer performance in school, lower adult economic productivity, and a higher risk that their own children will also be stunted, perpetuating the problem into future generations. Stunting begins antenatally and peaks at 18-24 months of postnatal life, when mean length-for-age Z-score (LAZ) is about -2.0 among children living in Africa and Asia. Improving the diets of young children can reduce stunting, though, at best, only by about one-third. Frequent diarrheal illness has also been implicated. However, the effect of diarrhea on permanent stunting is relatively small, maybe because children grow at "catch-up" rates between illness episodes.

The Sanitation Hygiene Infant Nutrition Efficacy (SHINE) trial is motivated by a 2-part premise:

* A major cause of child stunting and anemia is Environmental Enteric Dysfunction (EED). EED is a subclinical disorder of the small intestine, which is virtually ubiquitous among asymptomatic people living in low-income settings throughout the world. EED is characterized by increased permeability which facilitates microbial translocation into the systemic circulation and triggers chronic immune activation.
* The primary cause of EED is infant ingestion of fecal microbes due to living in conditions of poor quality and quantity of water, sanitation, and hygiene (WASH).


Options:
A: Study participants will be women who are rural residents of Chirumanzu or Shurugwi districts in Zimbabwe and who become pregnant during the enrollment period of the trial and are identified and consent to participation during pregnancy, and their live born infants. A total of 5280 women will be enrolled.

Inclusion Criteria:

Pregnant women residing in the study districts, whose pregnancy is confirmed by a urine pregnancy test.

Exclusion Criteria:

* Women residing in the study districts who become pregnant during the enrollment period but do not consent to join the trial
* Women who reside in urban areas of these two districts
* Infants with major non-fatal abnormalities will not be excluded from study procedures, but will be excluded from the final analytic sample if the abnormality is likely to directly affect gut health/function or stature (e.g. neural tube defects, cerebral palsy, Down syndrome)
B: Inclusion Criteria:

* At least 18 years of age
* No more than 20 wk of gestation
* Given Ante-natal Cards of the Ghana Health Service
* Completed the initial routine ante-natal examination at the clinics
* HIV negative or status unknown (as from the Ante-natal card)
* Free from chronic disease e.g. malignancy requiring frequent medical attention (as from the Ante-natal card)
* Residing in the Manya Krobo or Yilo Krobo district
* Prepared to sign an informed consent
* Living in the area throughout the duration of the study
* Acceptance of home visitors

Exclusion Criteria:

* Known asthmatic or history of allergy towards peanut or milk products
* Concurrent participation in another clinical trial
* Severe illness warranting hospital referral
C: Inclusion Criteria:

* resident in selected villages
* height between 60 and 80 cm.

Exclusion Criteria:

* refusal to participate
D: 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

Answer: A