U.S. expert explains 'unacceptable' rise of measles cases

WASHINGTON -- The U.S. has counted more measles cases in the first two months of this year than in all of 2017 -- and part of the rising threat is misinformation that makes some parents balk at a crucial vaccine, federal health officials told Congress Wednesday. Yet the vaccine is hugely effective and very safe -- so the rise of measles cases "is really unacceptable," said Dr. Anthony Fauci, infectious disease chief at the National Institutes of Health. The disease was declared eliminated in the