my nephews wife is here in the U.S. from the Dominican Republic visiting for 3weeks and is 20 weeks pregnant. She will be going back to the DR to finish up school until May when she returns to deliver the baby in the U.S. She saw a doctor in the DR and will see a U.S ob/gyn here before she goes back to the DR. Shouldn't she be concerned about the Zika virus there especially since she is pregnant?