Everyone has gotten ill at some time or the other in their life. The common cold, flu, cough, strep throat, and certain other diseases are commonplace and keep making a comeback over and over again. Our immune system is built for protecting us from these diseases and disorders and keeping us healthy. There are, however, certain diseases which can be easily spread from one person to another in a number of ways. These make us susceptible and vulnerable, and put our immunity at risk. These diseases are known as contagious diseases. In the following sections, we will provide you with a list of contagious diseases so that you can be on the lookout for the same and take precautions against them. The following is a general list of contagious diseases. These may be transmitted via various modes. Important Note - Many of these diseases like HIV/AIDS, measles and Hepatitis B can even result in death if proper precautions are not taken for the same. There are several skin conditions that go on to make their mark in the contagious diseases list as well. With a comprehensive knowledge of the kind of diseases that feature in the list of contagious diseases, it is always helpful to know how to prevent the onset of these. The following are certain steps that you can undertake in this direction. As far as the treatment for these conditions is concerned, technology has made great advances, and several of these contagious diseases can be treated with medication. Yet, it is always advisable to consult a specialist and start off with a proper treatment plan. Make sure to keep a copy of this list of contagious diseases handy, and try to prevent them rather than treat them. Disclaimer: This Buzzle article is for informative purposes only, and does not in any way attempt to replace the advice offered by a medical professional.