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The respiratory system (also respiratory apparatus, ventilatory system) is a biological system consisting of specific organs and structures used for gas exchange in animals and plants. The anatomy and physiology that make this happen varies greatly, depending on the size of the organism, the environment in which it lives and its evolutionary ...
[14] [15] [6] Sepsis affected about 49 million people in 2017, with 11 million deaths (1 in 5 deaths worldwide). [16] In the developed world, approximately 0.2 to 3 people per 1000 are affected by sepsis yearly, resulting in about a million cases per year in the United States. [6] [17] Rates of disease have been increasing. [9]
Obesity is a medical condition, considered by multiple organizations to be a disease, [8] [9] [10] in which excess body fat has accumulated to such an extent that it can potentially have negative effects on health.
HIV is now known to spread between CD4 + T cells by two parallel routes: cell-free spread and cell-to-cell spread, i.e. it employs hybrid spreading mechanisms. [95] In the cell-free spread, virus particles bud from an infected T cell, enter the blood/extracellular fluid and then infect another T cell following a chance encounter. [95]