The health department warning comes after the World Health Organisation (WHO) said in August that there was an outbreak of malaria in Praia, the archipelago’s capital.

Travellers are also advised that adults And children should use insect repellant throughout the day and reapply it as often as necessary.

If travellers also use sun cream, they should apply the insect repellant on top of the sun cream, not under it, the warning said.

So far, there have been 116 cases of malaria in Praia, numbers never before seen in the city, where the highest number was 95 cases in the whole of 2001.