It wearies me when people are so knee-jerk emotional that they make silly comments like supposing meningitis is transmitted through anal sex. It was a silly comment. If you don't like having your silly comments pointed out, perhaps you should hit the web and find out what bacteria cause meningitis and how it is transmitted before making wrong medical pronouncements.
You are assuming it was bacterial meningitis. I don't think I have ever heard of bacterial memingitis lasting 6 months.