To prevent the spread of the mosquito-borne Zika virus, we must control mosquito breeding and prevent mosquito bites.
Most infected people show no symptoms.
Those returning from affected areas should use mosquito repellent for at least 21 days and if feeling unwell should reveal travel details to a doctor.
Pregnant women and women preparing for pregnancy should not travel to affected areas.
For details, please visit the Centre for Health Protection website.