Table 1.

MRC staging of tuberculous meningitis

Stage 1	Prodromal phase with no definite neurological symptoms
Stage 2	Signs of meningeal irritation with slight or no clouding of sensorium and minor cranial nerve palsies, or no neurological deficit
Stage 3	Severe clouding of sensorium, convulsions, focal neurological deficit and involuntary movements

The British Medical Research Council classifies tuberculous meningitis into three stages based on its severity.

MRC, Medical Research Council.