Mesoderm lining the coelom forms mesothelium. Separation of Peritoneal and Pleural Cavities: In the adult, peritoneal and pleural cavities are separated by the diaphragm. The diaphragm isformed by a septum transversum, paired pleuroperitoneal folds, and somatic mesoderm.
HIV Myth 3: 'I Donât Need to Worry â HIV/AIDS Only Infects Gay Men'. This couldn't be further from the truth. HIV is transmitted through an exchange of body fluids, specifically semen, vaginal fluids, breast milk, blood or pre-ejaculatory fluids. Most men become HIV-positive through sexual contact with other men.
AIDS in Africa. The prevalence of HIV/AIDS is highest in Southern Africa. HIV/AIDS in Africa is one of the most important global public health issues of our time, and perhaps, in the history of mankind. In Africa, AIDS is one of the top causes of death. While only comprising slightly under 15% of the total population of the world, Africans account for nearly 70% of those who live with HIV and are dying of AIDS.