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.
1 Most pathogenic bacteria grow at these temperatures. 2  Thermophilic bacteria. 3  These microorganisms grow at higher temperatures such as 110Â°F - 150Â°F. 4  Temperature is the most widely used method of controlling bacterial growth. However, many bacteria grow under either condition and they are facultative anaerobes. 2  Temperature -- Bacteria in general are capable of growing over a wide range of temperatures and are usually classified according to the temperature at which they grow.