The CDC, or Centers for Disease Control and Prevention, is a national public health agency in the United States. Its main goal is to protect people's health and safety by preventing disease outbreaks and promoting healthy living. The CDC conducts research, provides information, and offers guidelines to help communities respond to health threats, such as infectious diseases and natural disasters. One of the CDC's key roles is to monitor and control the spread of diseases like COVID-19 and influenza. They work closely with other organizations, such as WHO (World Health Organization), to share information and strategies. By educating the public and healthcare professionals, the CDC helps ensure that everyone can make informed decisions about their health.