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...system or infectious agents at that time, the effect was to expose the recipient to a supposedly ‘weaker’ strain of the virus, which elicited a protective immune response against subsequent infection with a more virulent strain. Activity 1 What key features of the immune response does the practice of variolation demonstrate? Answer It shows the specificity of the...

...think how often a small child has to be reminded to wash their hands, but for handwashing to be effective it must be practiced regularly. There are many difficulties in establishing handwashing behavior as a habit including the availability of water in many poorer countries and personal, social, cultural and religious barriers. Consequently, establishing handwashing...

...thing would be: make games, learn what you like, and focus on that. Has your industry changed much in the last 5/10 years and if so, how? Transcript. The games industry is always evolving. What do you see as the future of your industry? Transcript. I think hopefully we’ll see the birth of more indie studios, smaller teams making interesting things, not just Triple-As....