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Biology Pre-AS level Task 2003 Malaria Sarah Stievenard 1. a) We cannot grow malaria parasites on a large scale, so anything produced against malaria would be a ‘sub-unit’ vaccine, i.e. a vaccine based on parasite proteins, peptides, known to induce protective immune responses. b) An endemic disease is a disease or a disease causing organism that is normally present in an area. 2. a) They may not have been told what they were doing. They would not have been allowed to speak to the scientists or communicate in any way with the other subjects.
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