We would like to acknowledge the following copyright holders for permission to reprint the following material:
- The World Health Organization for the reproduction of three images from WHO | Ebola [Internet] in Figures 3.1b, 3.2a and 3.3a. Available from http://apps.who.int/ebola/ [cited 19 June 2015]. The WHO website operated during a certain period of Ebola outbreak, but it is no longer operational. For up-to-date WHO information on Ebola, please refer to the following website: http://www.who.int/csr/disease/ebola/
- Diane Mavers and SAGE Publications for the transcript in Figure 4.1.
- Heinemann Educational Publishers for the reproduction of an image from Salters GCSE Science: Y11 student book in Figure 4.2a.
- Gunther Kress for the reproduction of his reorganized images of the digestive system in Figure 4.2b. and 4.2c. Reprinted from Gunther Kress (2014).
- Christian Heath and colleagues for the reproduction of a transcript in Figure 5.3
- Sigrid Norris for the reproduction of a transcript in Figure 6.1.
Every effort has been made to contact copyright holders. Please advise the publisher of any errors or omissions, and these will be corrected in subsequent editions.