Fix grammar
This shows the critical importance of vaccination programs in government management strategies and the vaccine coverage of the MMR vaccine.
This underscores the critical importance of vaccination programs in government management strategies and the vaccine coverage of the MMR vaccine.
This sentence is grammatically correct. However, if you would like to improve the structure and clarity, you could consider the following revision:
"This highlights the crucial role of vaccination programs in government management strategies, specifically in terms of the vaccine coverage for the MMR vaccine."