Hi, Welcome to Health care magic forum. Now your brother has diarrhea,stomach pain,vomiting, and lack of appetite. These are the symptoms of G.I. infection, usually called the food poisoning, due to some bacterial or viral infection of the food consumed. I advise you to consult a physician for diagnosis and treatment. I usually prescribe to my patient with such symptoms ofloxacin, ornidazole, omeprazole, domperidone,dicyclomine hydrochloride, lactic acid bacilli, and loperamide when ever necessary. These symptoms may not have any relation with the tuberculosis, due to the animals. wishing for a quick and complete recovery. Thank you.