Mustang Marine. As a prior enlisted Marine, our favorite officers were the mustangs. All that term means is prior enlisted. The reason a lot of people prefer them to fresh new butterbars out of college is that the mustangs have experience as an enlisted and, now, usually in war time scenarios.
What causes disease? Injury, infection or an unhealthy lifestyle can all make you ill. So can your genes, the instructions that tell your body how to make all the different proteins it needs to survive and grow. A change in a gene may cause a change in a protein, affecting the way it works in your body. Some genes are involved in common illnesses, while others cause rare genetic conditions.
An infectious disease is an illness that can be transmitted from person to person. There are several different causes of infectious diseases, including parasites, fungi, bacteria and viruses. Infections can develop in all areas of the body including the heart, brain, lungs and bones.ome infectious diseases, such as the common cold, are easily identified and treated; however, an infectious disease can also be complex and difficult to diagnose and treat. An infectious disease physician is a doctor who is an expert in diagnosing, treating and preventing various types of infectious diseases.