Hepatitis B virus

health February 27th, 2008

Cancer nowadays has become a very spread disease as among men as among women. Because of the high level of radiation, toxicity and pollution people suffer from cancer which is very hard to treat. Same thing or even worst is with HIV/AIDS, which started its spreading at the end of the 20th century. These diseases are very hard to treat, and that is why thousands of doctors and scientists work every day to find a solution. For example William Heyward, he graduated Johns Hopkins University School of Hygiene and Public Health and offered his life to save, prevent and treat people from different diseases, such as cancer and hepatitis B virus infection and many others. These people work for the society, participate in governmental projects for saving people