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...writing). AIDS-related deaths fell from 2 million in 2008 to 1.8 million in 2010 due to the expansion of access to effective antiretroviral therapy. One outcome of this success is that HIV prevalence (the number of people living with HIV infection) is steadily increasing – to 34 million in 2010. Just over 2 million of those people were children under 15 years infected...

...write it as /100. So 5% is the same as 5/100. 5/100 can also be written as 0.05. A 5% increase means take the original amount ( 1x the original amount) and add 5%, or 0.05x the value, to it. That is, a 5% increase means multiply the original amount by itself (1x) and another 0.05x itself, to give 1+0.05 = 1.05 times the original amount. To see how quickly the...

...Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence. The material acknowledged below is Proprietary and used under licence (not subject to Creative Commons Licence). Grateful acknowledgement is made to the following sources for permission to reproduce material in this free course: Course image: Roman Zaiets / Shutterstock 227674: Figure 1: Du Cane Medical...

...writing (ICD-11, which became available on 18 June 2018). You can read about DSM and anxiety in a short paper by David Kupfer from the Department of Psychiatry at the University of Pittsburgh School of Medicine, published in 2015 (a link to the article is provided in the References section). There continues to be considerable controversy and debate around the use of one...