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July 28, 2014, marks the 4th annual World Hepatitis Day. Nearly 400 million persons are living with hepatitis B or hepatitis C, and more than 1 million die annually as a result of their infection. This year, the 67th World Health Assembly (WHA) reaffirmed the global commitment to prevent and control viral hepatitis through the passage of resolution WHA 67.

On February 4, CDC joins people, organizations, and government agencies around the world in exploring how everyone can help prevent and control cancer.

June 27 is National HIV Testing Day, a day to get the facts, get tested, and get involved!

The global tobacco epidemic contributed to 100 million deaths worldwide during the 20th century and continues to kill nearly 6 million persons each year, including approximately 600,000 from secondhand smoke. If current trends persist, an estimated 500 million persons alive today will die from the use of tobacco products. By 2030, tobacco use will result in approximately 8 million deaths worldwide each year.

In the United States, May is Hepatitis Awareness Month, and May 19 is National Hepatitis Testing Day. Although care and treatment can be life-saving, many of the estimated 800,000 to 1.4 million persons living with hepatitis B virus (HBV) infection and the estimated 3 million persons living with hepatitis C virus (HCV) infection are unaware of their infection and are not receiving necessary care and treatment (1).

Workers' Memorial Day, observed on April 28, 2014, recognizes workers who died or suffered from exposures to hazards at work. In 2012, a total of 4,383 U.S.

National DNA Day is the perfect time to share what you know about DNA and learn more. Visit the National DNA Day website to find resources for teachers, students, and anyone else who wants to improve their understanding of DNA, genetics, and genomics. The website also has information for experts in genetics and genomics who are interested in outreach to schools and other places in their community. Read more about how you can participate in National DNA Day.

Learn more about alzheimer's disease.

April 7, 2014 marks World Health Day and the 66th anniversary of the World Health Organization (WHO). This year’s theme is vector-borne diseases.

Know Hepatitis. Act Now. For World Hepatitis Day, learn more about the different types of viral that impact millions worldwide, and what you can do.