You've probably heard meningitis called either a viral or bacterial infection, but you may not know the difference between the two. Viral meningitis is usually caused by another viral disease such as the flu and is much more common than the bacterial form. Viral meningitis is considered extremely contagious, but doctors say it's rarely fatal. Patients usually show symptoms for a week or two, then see a full recovery. Bacterial meningitis On the other hand, bacterial meningitis is considered a critical illness that is usually caused by an internal infection and can worsen in a matter of hours. Complications could cause permanent hearing or vision loss, brain damage, paralysis and even death. Bacterial meningitis is usually only spread by coughing or sneezing

Other signs in babies: Tense or bulging soft spot on their headRefusing to feedIrritable when picked up, with a high pitched or moaning cryA stiff body with jerky movements, or else floppy and lifelessFever is often absent in babies less than three months of age

Get medical help immediately