Stepping up their vigilance against Ebola, federal authorities said Wednesday that everyone traveling into the U.S. from Ebola-stricken nations will be monitored for symptoms for 21 days. That includes returning American aid workers, federal health employees and journalists, as well as West African travelers.

The first person diagnosed with Ebola in the U.S. died Wednesday despite intense but delayed treatment, and the government announced it was expanding airport examinations to guard against the spread of the deadly disease.