1 Children gain on average between 30-40 pounds (13.5-18.0 kilograms) between age 11-14. 2  A child can gain 20 pounds (9 kilograms) or more in one year. 3  Girls gain weight first as a layer of fat all over the body and then more around breast, hip and thighs.s an adolescentâs growth velocity (speed) increases, they physically begin to thin out and the weight gain is adjusted on their bodies. Statistics on teenage height growth patterns: 1  The beginning of growth velocity is approximately 9 years old for girls and 11 years old for boys. 2  The growth spurt lasts 2-3 years.
If a person's immune system becomes unable to prevent the bacteria from growing, the TB becomes active. Of people who have latent TB, 5% to 10% (1 to 2 people out of 20) will develop active TB at some point in their lives. 1
An Introduction to the Causes of Tuberculosis. The cause of tuberculosis (TB) is a bacterium called Mycobacterium tuberculosis. This bacterium usually attacks the lungs. However, it can attack any part of the body such as the kidney, spine, and brain.If not treated properly, TB can be fatal.TB was once the leading cause of death in the United States.B is spread through the air from one person to another. The bacteria are put into the air when a person with active TB of the lungs or throat coughs or sneezes. People nearby may breathe in these bacteria and become infected.