UK travel companies are being urged to share the latest advice and updates regarding the Zika virus with their customers.
The outbreak has now reached more than 20 countries, including popular holiday destinations such as Mexico, Barbados, the Dominican Republic and most recently Jamaica.
The World Health Organisation (WHO) has predicted that 3-4 million people could be infected with the virus in the Americas this year.
Most will not even develop symptoms from the virus, which is spread by mosquitoes, but Zika has been linked with brain defects in babies, putting pregnant women at risk.
Thomson, Thomas Cook and Virgin have already confirmed that they are giving pregnant women the chance to change or cancel their holidays to the affected countries for no charge.
In a message to its members, ABTA told agents to follow updates from the National Travel Health Network and Centre (NaTHNaC).
"It is very important that if travel companies are selling these destinations, they make customers who have already booked to travel to these areas aware of this latest advice, and also make them aware of any cancellation and amendment policy," it said.
"Travel companies will try and be as flexible as possible with pregnant customers who had already booked before the advice changed."
For the latest NaTHNaC advice for pregnant women, click here.
