Diagram showing the development of different blood cells from haematopoietic stem cell to mature cells. Haematopoiesis (from Greek Î±á¼·Î¼Î±, blood and ÏÎ¿Î¹Îµá¿Î½ to make; also hematopoiesis in American English; sometimes also haemopoiesis or hemopoiesis) is the formation of blood cellular components.iagram showing the development of different blood cells from haematopoietic stem cell to mature cells. Haematopoiesis (from Greek Î±á¼·Î¼Î±, blood and ÏÎ¿Î¹Îµá¿Î½ to make; also hematopoiesis in American English; sometimes also haemopoiesis or hemopoiesis) is the formation of blood cellular components.
HIV/AIDS. HIV/AIDS damages cells of the immune system, making it difficult to fight infections and certain cancers. Women can pass the virus to their fetus during pregnancy; transmission also can occur during labor and giving birth or through breastfeeding.
HIV can be transmitted in many ways, such as vaginal, oral sex, anal sex, blood transfusion, and contaminated hypodermic needles. Both the virus and the syndrome are often referred to together as HIV/AIDS. People with HIV have what is called HIV infection.As a result, some will then develop AIDS.IV can be transmitted in many ways, such as vaginal, oral sex, anal sex, blood transfusion, and contaminated hypodermic needles. Both the virus and the syndrome are often referred to together as HIV/AIDS. People with HIV have what is called HIV infection. As a result, some will then develop AIDS.