"AIDSinfo is a U.S. Department of Health and Human Services (DHHS) project that offers the latest federally approved information on HIV/AIDS clinical research, treatment and prevention, and medical practice guidelines for people living with HIV/AIDS, their families and friends, health care providers, scientists, and researchers..." read more by visiting this site.

"The Centers for Disease Control and Prevention (CDC) is one of the 13 major operating components of the Department of Health and Human Services (HHS), which is the principal agency in the United States government for protecting the health and safety of all Americans and for providing essential human services, especially for those people who are least able to help themselves..." read more by visiting this site.

"Hantavirus pulmonary syndrome (HPS) is a deadly disease transmitted by infected rodents through urine..." read more by visitng this site.

"Lyme disease is caused by the bacterium Borrelia burgdorferi and is transmitted to humans by the bite of infected blacklegged ticks..." find out more by visiting this site.

"Plague is an infectious disease of animals and humans caused by a bacterium named Yersinia pestis. People usually get plague from being bitten by a rodent flea that is carrying the plague bacterium..."  read more by visiting this site.

"Severe acute respiratory syndrome (SARS) is a viral respiratory illness caused by a coronavirus, called SARS-associated coronavirus (SARS-CoV). SARS was first reported in Asia in February 2003. Over the next few months, the illness spread to more than two dozen countries in North America, South America, Europe, and Asia..." read more by visitng this site.

"Smallpox is a serious, contagious, and sometimes fatal infectious disease. There is no specific treatment for smallpox disease, and the only prevention is vaccination..." read more by visiting this site.

"Prevention of relapsing fever consists of avoiding likely tick habitats or, when this is not possible, reducing the risk of tick bites by the use of repellents or acaricides..." read more by visiting this site.

"Ready.gov is a common sense framework designed to launch a process of learning about citizen preparedness. One of the primary mandates of the U.S. Department of Homeland Security is to educate the public, on a continuing basis, about how to be prepared in case of a national emergency - including a possible terrorist attack..." read more by visiting this site.