This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable diseases, Subject name: Social & Preventive Medicine
[{'content': 'Treatment of P. Vivax malaria \nSelect and explain. \nA. Chlorquine, B. Primaquine, C. Chlorquine + Primaquine, D. None', 'role': 'user'}, {'content': 'Answer: C \nExplanation: P.vivax cases should be treated with chloroquine in full therapeutic dose of 25mg/ kg divided over 3 days. Vivax malaria relapses due to presence of hypnozoites in the liver. For its prevention, primaquine may bd given at a dose of 0.25 mg/kg daily for 14 days under supervision Reference; Park&;s Textbook of preventive and social medicine, 24th edition.Pg no. 279', 'role': 'assistant'}]