Sever's disease or calcaneal apophysitis is usually considered to be due to damage or a disturbance in this area of growth. The two growth areas of the calcaneus can be seen on this x-ray. The smaller area to the back of the heel is normal.hat are the long term consequences of heel pain in the child (Severs disease or Calcaneal apophysitis): This condition is self limiting-it will go away when the two parts of bony growth join together-this is natural.
So, a virus must have a host cell (bacteria, plant or animal) in which to live and make more viruses. Outside of a host cell, viruses cannot function. For this reason, viruses tread the fine line that separates living things from nonliving things.
It depends on the type of bacteria or virus and what kind of surface they are on. Most bacteria, viruses and fungi that cause diseases need moisture to survive so the moisture in the air and in surfaces can also affect how long they live outside the body.t depends on the type of bacteria or virus and what kind of surface they are on. Most bacteria, viruses and fungi that cause diseases need moisture to survive so the moisture in the air and in surfaces can also affect how long they live outside the body.