Hey,
37 degree celcius is thought to be the ideal body temperature. But,in the era of globalization and massive pollution,your body cannot afford to maintain an ideal body temperature. It keeps fluctuating .There are other variables that can affect body temperatures such as age, time of the day, level of activity and also gender.Females are affected by the menstrual cycle during which body temperatures can be slightly higher.
Now coming to corona virus.
See,the doctors across world are working extensively to find the exact cause behind this novel virus and sadly,every new discovery is leading to a new mystery.
The temperature or the body is ideal for corona virus to thrive.
For most patients, COVID-19 begins and ends in their lungs, because like the flu, coronaviruses are respiratory diseases.
All we can do is to take precautions. Every other day,WHO is releasing circulars about the precautionary measures.
Hope this helps.
Good luck.