And I almost hate to say them out loud, but you need to know if there will be later 'residuals' are: Meningitis and some forms of encaphalitis. These are sneaky and can be picked up almost anywhere. They also can and do cause changes such as you describe.
Testing involves taking a lot of blood and doing special titre tests to see if there is a 'presence' of one of these infections or the other. Usually treatments with drugs and varied therapies can help immensely when caught in time, and it sounds like it was.
I know of someone who got it. The whole experience was horrid and yet they go on and get by. Meyloencephalitis....
Good hopes and hugs for better to best progress! - j