you should be concerned when its about 104
Low body temperature in a 2 year old can be dangerous. However, this depends on how low the body temperature is and what the cause is from. See your doctor if you have a child with consistently low body temperature.
A temperature of 97ºF is not dangerous. The human body keeps a normal temperature from 97.9 - 99.5 ºF (36.5 - 37.5ºC).
103 It gets dangerous when your body temperature gets too high and denature the enzymes in your body.
By raising body temperature
Yes. It is likely fatal.
No
Hypothermia
anything at 100F or over is considered a fever
Normal human body temperature is 37 C. Fevers should be diagnosed by physicians.
Such garments interfere with the evaporation of perspiration and can cause body temperature to rise to dangerous levels.
Hypothermia occurs when the body's temperature falls below the normal range. Some fluctuation in body temperature is normal; however hypothermia is dangerous, because the body temperature becomes too low for normal bodily functions to occur properly.
Hypothermia is dangerous because it lowers your core body temperature to a dangerous level in which your metabolism is reduced to abnormal stages and your bodily functions don't have enough heat to work