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.
HIV/AIDS in South Africa is a prominent health concern; South Africa is believed to have more people with HIV/AIDS than any other country in the world. The 2007 UNAIDS report estimated that 5,700,000 South Africans had HIV/AIDS, or just under 12% of South Africa's population of 48 million. In the adult population the rate is 18.5%. The number of infected is larger than in any other single country in the world.