The world today faces many challenges: climate change due to global warming, hunger and malnutrition in third world countries due to poverty, poor governance and corruption, wars and conflicts endless, and the list goes on. But the issue of communicable diseases is what alarms most people in every nation, especially in third world countries. In fact, a large part of deaths worldwide are caused by infectious diseases. This concern should be addressed first, among other issues. Communicable diseases not only affect a single country, but can also become a pandemic. First of all, communicable diseases or infectious diseases are a major problem all over the world. HIV/AIDS (human immunodeficiency virus/acquired immunodeficiency syndrome), SARS (severe acute respiratory syndrome), and swine flu (H1N1) are some of the communicable diseases that have recently hit the world. Among these communicable diseases, HIV/AIDS is considered the greatest threat endangering everyone across the world. According to the WHO (World Health Organization), there has been a 50% increase in people infected with HIV since 2004. The Joint United Nations Program on HIV/AIDS reports that from its discovery in 1981 to 2006, AIDS has killed more than 25 million people. people. Furthermore, HIV/AIDS does not choose a specific person to infect. Anyone can become infected with HIV/AIDS or other infectious diseases if proper precautions are not observed. It has been argued that the health problems of another country, especially developing countries, should be left alone for the government to solve. It is the responsibility of governments to address their countries' problems. However, a country's health problems have the potential to become active measures...... of paper ......to avoid contact with these diseases. People should avoid traveling to places known to have infectious diseases. Getting immunization from health centers is also one of the best preventive measures. Finally, always wash your hands when you are in public places. In conclusion, communicable diseases are so alarming that they cannot be ignored. Every single person in the world is at risk of contracting various infectious diseases. This issue must be the first priority of every government. It can not only affect their country, but also the world. Building more health centers in poverty-stricken communities can reduce the chances of disease spreading in a small area. This reduces the possibility of creating a pandemic. In addition, compliance with appropriate preventive measures will help reduce the possibility of contracting infectious and fatal diseases.