NEW YORK — The Senate’s top Democrat said Sunday he will work to block a plan that would significantly cut the proposed budget of the Centers for Disease Control and Prevention, warning that such a spending reduction could endanger the public. Majority Leader Chuck Schumer of New York told The Associated Press he would block legislation from passing the Senate if it were to include the proposed cut. [time-brightcove not-tgx=”true”] Democrats said the proposal in a House bill includes a reduction of the CDC’s proposed budget by $1.8 billion, or about 22%, that would harm public health.