The mosquito-borne Zika virus is set to spread in all countries across the Americas, except Canada and Chile, the World Health Organization has warned.
Women planning to travel to areas where Zika is circulating should consult their healthcare provider before traveling and on return, the WHO said.
So far in Brazil:
2,700 cases of birth defects are suspected to have been triggered by Zika..
The Zika virus can be transmitted through blood and has also been detected in human semen. But it remains to be seen if this is only related to a sexually transmitted disease.