system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 5yr old boy presents with sore throat for the last two days On examination he has a greyish white pseudomembrane around his tonsils Diphtheria is suspected His brother has recieved last booster 22 months back What prophylactic measure should be adopted for the brother
assistant
The correct answer is  National immunization schedule the 3 yr old sibling would have recieved a booster b w 16 24 months of age Nothing needs to be given for diphtheriaprophylaxis if booster has been relieved in last 2yrs REF : BAVEJA MICROBIOLOGY