New York City is sending a million condoms to Puerto Rico, which has recorded one death from the Zika virus.
It has so far been hit with 570 locally transmitted cases, more than anywhere else in the United States.
Zika is linked to a severe birth defect called microcephaly, where babies are born with unusually small heads.
The virus is largely spread by mosquitoes but can also be transmitted through sex.
For this reason, officials said that one million official 'NYC Condoms' will be donated to the Puerto Rico Department of Health.