The disease does not appear to spread from a mother to her baby at birth. The main symptoms are a fever, a dry cough, shortness of breath, or difficulty breathing. A person with SARS also may experience a headache, muscle aches, a sore throat, fatigue, and diarrhea. An older person may feel generally unwell (malaise) and lose his or her appetite but not have a fever.
Figuring out how many calories you burn when running is, on a simple level, a fairly straightforward calculation. Most experts (and lots of studies) suggest that a person of average weight burns about 100 calories in a mile of running.
Obviously it'll be different for everyone, but my own stats from back in January say that I burned around 34 calories a mile cycling, whereas I burn around 100 calories a mile on foot. However, my bike rides would have me doing 2 miles in 15 minutes, whilst I covered 1 mile in 20 mins when walking. So, I could walk for an hour and burn 300 calories, or I could cycle for an hour and burn 272 calories. Not all that much different, at that level.