Complex sentence: A poll made in Washington said many people were unaware that "medicare doesn't pay for the most common types of long-term care" (Neergaard); 37 percent of Americans who took the survey believe that it does cover it.
Split into simpler sentences: A poll made in Washington concluded that, many people don't know that, "Medicare doesn't pay for the most common types of long-term care" (Neergaard). However, 37 percent of Americans who took the survey believe that it does cover it.