Fitness Question:

Generally if the sickness is above the neck, it's alright to exercise (sinus, headache, sore throat, etc). Just take it easy and respect others who aren't sick by wiping off the bar or handlebars when finished and by washing your hands frequently if your sickness is contagious. It might also be a good time to take a few days off to let your body recuperate, getting sick might be a sign of overtraining.