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
Tuberculosis is an infectious disease. The bacteria that cause tuberculosis are called mycobacterium tuberculosis. People with TB or tuberculosis cough excessively and suffer a terrible pain in the chest. They cough up blood and display excessive weight loss, fatigue, loss of appetite, and persistent fever.hile a majority of bacteria in the human body are countered by the immune system, there are a few that are pathogenic in nature. Pathogenic bacteria cause infectious diseases like leprosy, cholera, anthrax, and bubonic plague.