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The graph shows the number of reported cases of measles in England and Wales between 1940 and 2010 - OCR Gateway - GCSE Biology - Question 7 - 2020 - Paper 2
Question 7
The graph shows the number of reported cases of measles in England and Wales between 1940 and 2010. Number of reported cases of measles In which year was the measl... show full transcript
Worked Solution & Example Answer:The graph shows the number of reported cases of measles in England and Wales between 1940 and 2010 - OCR Gateway - GCSE Biology - Question 7 - 2020 - Paper 2
Step 1
In which year was the measles vaccine likely to have been introduced?
Answer
To determine when the measles vaccine was likely introduced, observe the graph of reported cases of measles. In the late 1960s, there is a noticeable decline in the number of cases. This suggests that the vaccine was introduced around this period. Given the options provided, the correct answer is C 1968, as this aligns with the significant drop in measles cases seen in the graph.