Capsule Endomicroscopy for Visualization of the Small Intestine in EED Population in Pakistan

The Inclusion Criteria: * Children must be 6 months to 59 months old * Adult participants 18 years of age or older scheduled for a standard of care endoscopy * EED manifesting as malnourishment (WHZ\<-2) without clear etiology or healthy subjects with WHZ \>=0 * Participants and/or parents/guardians must be able to give informed consent/assent * Participants and/or parents/guardians must be willing to provide consent for live streaming of the procedure * Participants must be able to follow fasting instructions prior to the procedure Inclusion criteria for Pregnant women: * Participants 18 years and older * Participants who are in their 2nd trimester of singleton pregnancy as confirmed by an ultrasound * Participants with a BMI below 18.5 without clear etiology and healthy pregnant women with BMI between 18.5 -24.5. * Participants must be able to follow fasting instructions prior to the procedure * Participants must be able to consent to the procedure Tethered Capsule Exclusion Criteria: * Participants with any history of esophageal or intestinal strictures or prior GI surgery * Participants with history of pyloric stenosis * Participants with HIV diagnosis Trans Nasal Exclusion Criteria: * Participants with any contraindications for NG/NJ tube placement, including but not limited to those listed below: * Participants with any history of esophageal or intestinal strictures or prior GI surgery * Participants with history of pyloric stenosis or atresia * Participants with…