Characteristics of tbm in infants and young children 1. a rapid onset with convulsion, abruptly high fever 2. Atypical meningeal irritation 3. Intracranial hypertension manifests as bulging of anterior fontanelle and widening of cranial sutures in infant 1515 Characteristics of TBM in infants and young children 1. A rapid onset with convulsion, abruptly high fever 2. Atypical miningeal irritation 3. Intracranial hypertension manifests as bulging of anterior fontanelle and widening of cranial sutures in infant