After CW3, the next level of the Warrant Officer ranks is Chief Warrant Officer 4 (CW4). CW4's stand even more experienced tactical and technical experts in their specific military craft than CW3's.
Cancer is a disease in which cells in the body grow out of control. When cancer starts in the lungs, it is called lung cancer. Lung cancer begins in the lungs and may spread to lymph nodes or other organs in the body, such as the brain. Cancer from other organs also may spread to the lungs.When cancer cells spread from one organ to another, they are called metastases.ung cancer begins in the lungs and may spread to lymph nodes or other organs in the body, such as the brain. Cancer from other organs also may spread to the lungs.
Tuberculosis (TB) is a highly infectious disease that is caused by strains of bacteria that belong to the Mycobacterium tuberculosis complex. Though TB mainly affects the lungs, it could also affect other parts of the body.A person is diagnosed with pulmonary tuberculosis, when the lungs get infected.ulmonary tuberculosis is the most common form of tuberculosis. Bacteria that cause tuberculosis could also spread from the lungs to other parts of the body through blood or the lymph fluid. An active TB disease of the lungs, airways, or larynx is considered to be highly contagious.