A KILLER bug tearing through holiday hotspots is especially dangerous to expecting mums and their unborn babies, scientists have warned.
Mosquito-borne dengue fever can can cause muscle and joint pain and severe headaches to those bitten by infected pests.
But recent research conducted by the Universities of Surrey and Birmingham has found that it can be fatal or cause lifelong complications for mums and their unborn babies.
The paper warned that even a mild infection could make it 77 per cent more likely that a pregnant woman gives birth prematurely, before 32 weeks.
Getting dengue can also more than double the risk of a child being