Susan C. Baker throughout the body. This disease also affects skin, mucous membranes, and the body's lymph nodes. Baker's lab is investigating the possibility of a viral causative agent for the disease. This disease mostly affects children under the age of 5. Causes remain unknown, however it is treatable within days if the symptoms are recognized early enough. If left untreated, it can lead to serious problems for the heart. Baker has also worked closely with coronaviruses, the causative agent of Severe Acute Respiratory Syndrome. These are viruses that affect mostly the upper respiratory and GI tract of humans and are named because
Sexual selection in humans their beauty or fine plumages, and that the artistic faculties in humans belong to their spiritual nature and therefore cannot be connected to natural selection, which only affects the animal nature. Darwin was accused of looking to the evolution of early human ancestors through the moral codes of the 19th century Victorian society. Joan Roughgarden, citing elements of sexual behavior in animals and humans that cannot be explained by the sexual-selection model, suggested that the function of sex in human evolution was primarily social. Joseph Jordania suggested in 2011 that in explaining such human morphological and behavioral characteristics as singing,