Worldwide, more than 33 million people are infected with HIV (the virus that causes AIDS) and nearly 14 million are already dead of the disease.

Ten percent of the world's people live in Africa, but it is home to 90 percent of the world's HIV-infected children. In sub-Saharan Africa 470,000 children die every year from AIDS. For most, the deadly virus is transmitted from their mother.

5.4 million new AIDS infections in 1999, 4 million of them in Africa.5.4 million new AIDS infections in 1999, 4 million of them in Africa. 2.8 million dead of AIDS in 1999, 85 percent of them in Africa.2.8 million dead of AIDS in 1999, 85 percent of them in Africa million children orphaned by AIDS, 12.1 million of them in sub- Saharan Africa.13.2 million children orphaned by AIDS, 12.1 million of them in sub- Saharan Africa. AIDS in Africa: Dying by the numbers More than 500,000 babies infected in 1999 by their mothers -- most of them in sub- Saharan Africa.More than 500,000 babies infected in 1999 by their mothers -- most of them in sub- Saharan Africa. Reduced life expectancy in sub-Saharan Africa from 59 years to 45 between 2005 and 2010, and in Zimbabwe from 61 to 33.Reduced life expectancy in sub-Saharan Africa from 59 years to 45 between 2005 and 2010, and in Zimbabwe from 61 to 33.

This sequence shows an HIV particle approaching and attaching itself to a lymphocyte. (Lymphocytes, which include helper T cells and killer T cells, are small white blood cells that are critical in immune defense and are HIV's principal target.)

Initially: headaches, high fever, muscle & joint pain, weakness Finally: internal and external hemorrhaging (bleeding) & death VECTOR??

(death rate is 70-90%)

VECTOR?

GLOBAL DISTRIBUTION Fatigue, fever ( °)& muscle aches. About half of the people infected with hantavirus will also develop headaches, dizziness, chills, and gastrointestinal problems such as nausea, vomiting, diarrhea, and abdominal pain. Later symptoms include coughing and shortness of breath. Respiratory severity resulting in death. US death rate for contracted cases of the hantavirus is 38%