abrakadabra21 wrote:
In a certain population, the two most heavily diagnosed diseases are schistosomiasis and malaria. Over the past five years, malaria has accounted for more than half of all disease cases, and schistosomiasis, which accounted for 40% of all disease cases in the community five years ago, accounted for 30% in the past year.
Over the past five years
S m others
50>
five years ago
S m others
40%
past year
S m others
...
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