The layoffs have raised fears that the administration could be effectively ending an initiative that provides contraception for millions of low-income women.
The president's call for removal of the metal from childhood inoculations set off alarms. About half of shots for polio, whooping cough and other diseases would be affected.
Testing proved that a Long Island woman had been exposed to the mosquito-borne virus, which is more commonly seen in the Caribbean and Central and South America.
The Trump administration's embrace of unproven or debunked theories about vaccines and Tylenol has left doctors fielding questions from worried parents.
"Disease detectives," high-ranking scientists, the entire Washington office and the staff of a weekly public health journal were among those who learned late Friday that they would lose their jobs.