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.
A lung infection is an inflammation in or around the lung tissues that is caused by a virus, fungi, or bacteria. There are a number of things that can trigger this sort of problem, but the four most common tend to be asthma, bronchitis, pneumonia, and tuberculosis.uberculosis. Tuberculosis is one of the most serious lung diseases a person can get. It is a serious pulmonary infection that is caused by mycobacterium tuberculosis. The lungs are usually the main organ affected, but the infection can and often does spread.