Kernig's sign is seen in –

Acute bacterial meningitis Acute bacterial meningitis is one of the most potentially serious infections occurring in infants and older children. It is commoner in neonates and infants than in older children because their immune mechanism and phagocytic functions are not fully matured. Clinical features of meningitis in children The onset is acute and the symptoms are - Fever Irritability Headache Projectile vomiting Shrill cry  Bulging fontanel Seizures Altered sensorium Photophobia Neck rigidity Generalized hypertonia Diplopia Ptosis Squint Signs Kernig's sign → Extension of khee is restricted to less than 135°, when the hip is in 90° flexed position. Brudzinski sign → On flexing the Neck, there is flexion of the hips and knees. Tachy cerebrate → If skin of the abdomen is lightly scratched, flushing may be seen.