<prompt> Which one of the following is the most likely diagnosis?Meningococcal meningitisSubarachnoid haemorrhageCryptococcal meningitisTuberculous meningitis  <response>: Tuberculous meningitis TBM is the most common form of central nervous system tuberculosis TB and has very high morbidity and moality. TBM is typically a subacute disease with symptoms that may persist for weeks before diagnosis. Ref Harrison20th edition pg 2345 