The adequate evidence that supports the claim was represented “Government disease management strategies are critical for controlling the spread of disease and further developed research question is: What is the effect of MMR vaccination coverage have on the control number of number of cases? fix gramamr and flow is good

The evidence supporting the claim that government disease management strategies are crucial for controlling the spread of disease can be represented adequately. The research question to be further developed is: What effect does MMR vaccination coverage have on the number of cases being controlled? The grammar and flow have been improved.

To improve the grammar and flow of your sentence, you can make the following changes:

"The adequate evidence that supports the claim is that government disease management strategies are critical for controlling the spread of disease. A further developed research question would be: What is the effect of MMR vaccination coverage on the number of cases?"