Were you also vaccinated for pneumonia? Pneumonia can hit otherwise very healthy people. When I was 20 and in the army I got "walking pneumonia" and couldn't walk up three stairs without stopping to gasp for breath. A shot of penicillin and two days in bed fixed it, but at 70 I wouldn't want to catch it again. In the last year I have been vaccinated for shingles, pertussis, pneumonia, flu, and a tetanus booster. Also in the last two years, a hepatitis series. No illness in the last year, and no autism, so far!