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.
The gastroenterology medical specialty focuses on diagnosis and treatment of the digestive system and medical conditions affecting it. The length of the gastrointestinal tract spans from mouth to anus. Testing and gastroenterology procedures are performed all along the gastrointestinal tract, and may be localized in different areas depending on your condition or symptoms.