One of the responsible for one of the major cases of corruption that stole millions from the government spent only 1 year and half in jail. That guy stole for more than 12 years. Nobody cares. Second, the people in Brazil do not have, in general, political inclinations.
Faecal samples may be collected for microbiological culture if the child has significant associated abdominal pain or blood in the stool, as a bacterial cause of gastroenteritis is more likely. However these results usually don't alter treatment.
A gastroenterologist (a doctor who specializes in treatment of disorders of the gastrointestinal tract) may order specialized tests to look for the cause and extent of the esophagitis. These tests include: Esophagogastroduodenoscopy (EGD): An endoscope is used to directly examine the esophagus, stomach and first part of the intestines. In addition, tissue samples can be obtained (biopsy) to assess the severity of the damage to the esophagus.