<prompt> Giving Benzathine penicillin in RHD is a type of -Primary preventionSecondary preventionTeiary preventionPrimordial prevention  <response>: parks textbook of preventive and social medicine 23rd edition. in children :Im injection of benzyl pencillin 600000 units. in adult :1.2 million units. this must be continued for 5 years or until the child reaches 18 years. 