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...de Quadros, C.A. (1979) ‘Global eradication of poliomyelitis’, Annals of Internal Medicine, Vol. 127, issue 2, pp. 156-158, American College of Physicians; Figure 2.2 Reprinted from Infectious Diseases by Armstrong and Cohen, Vol 1, p.22.3 by permission of the publisher Mosby; Figure 3.1 Dr Alan Cann; Figure 3.2 Reproduced by permission of Jean-Yves Sgro; Figure 5.2...

...de-ionised water, we don’t recommend it. Why do you think the purest form of water might not be good for you? Perhaps you’ll be able to see why at the end of the experiment. Follow Janet’s instructions in the video (or use your activity booklet PDF) and remember to keep clear and accurate notes in your journal. Once again, think about the variables that could affect...

...de Janeiro, Brazil, where heavy rain caused fatal mudslides and flooding in January 2010. (b) A sign in Rawnsley Park Station, South Australia, rendered unnecessary by the 2007–08 drought . Extreme weather events also have indirect impacts. These might be, for example, reduced agricultural yields and social instability such as violent crime and mass migration (Edwards...