Tamoxifen is used to treat breast cancer that has spread to other parts of the body (metastatic breast cancer), to treat breast cancer in certain patients after surgery and radiation therapy, and to reduce the chances of breast cancer in high-risk patients. This medication can block the growth of breast cancer.
The third-deadliest species for humans are snakes, which are responsible for 50,000 deaths every year. Nearly ten times as many people meet their deaths at the hands of other people, totaling 475,000 annual fatalities. Mosquitoes are the world's number one killer, according to the 58-year-old philanthropist.
In 1999, the WHO announced that AIDS was the fourth biggest cause of death worldwide and number one killer in Africa. An estimated 33 million people were living with HIV and 14 million people had died from AIDS since the start of the epidemic.70.