<prompt> One of your patients after returning from abroad has been diagnosed to have meningococcal meningitis. What immediate chemoprophylaxis will you advice for the patients close contacts?Rifampicin 600 mg OD x 3 daysRifampicin 600 mg BD x 2 daysRifampicin 300 mg BD x 3 daysRifampicin 600 mg OD x 2 days  <response>: The treatment recommended is Rifampicin 600 mg BD x 2 days for an adult or Minocycline 100 mg BD may also be used. Penicillin doesnt eradicate the carrier state. Sulphonamide resistant strain has now emerged so it is no longer reliable. Note: Vaccine is available against A, C, Y and W135 strains only. Ref: Park, Edition 21, Page 155 