Depends on if he's being tested for bacterial or viral. Bacterial meningitis is extrememly serious and can be fatal. So to be so blunt. Viral can be serious but rarely fatal and is much more common. We had viral meningitis run rampant through DS's little loop football team a few years back, it was very scary at first. Anyhow, viral is more predominant in the fall and bacterial in the spring. However, either can happen at any time. I would get some more details if I were you about what is going on.