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# Learning outcomes

After studying this course, you should be able to:

- define and use, or recognise definitions and applications of, each of the glossary terms in the course
- describe influenza viruses, their structure, how they are transmitted, how they infect cells and replicate and how they produce their damage in the host
- outline the different types of immune defence which are deployed against flu infections, distinguishing those that act against infected cells from those that act against free virus
- describe how strains of the virus change over time, and relate this to the flu viruses that occur in birds and other mammals
- explain how the epidemic pattern of influenza can be related to the evolution of new strains of virus and to the specificity of the immune response against each strain.
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OpenLearn - Influenza: A case study
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