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with the virus. There is no vaccine for Zika and it will be difficult to find one. A doctor said a vaccine would have

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particular, scientists say it causes a disease called microcephaly. This is where a baby is born with a smaller head

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year. Dr Margaret Chan, Director-General of the WHO, warned that Zika is "spreading

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explosively". She added that it has quickly gone from being a mild threat to being

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over 11,000 people in West Africa in 2014 and 2015. The WHO estimated that the Zika virus could infect four million people

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to be tested on pregnant women, and that would be "a practical and ethical nightmare".

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into a global pandemic. Many scientists say the outbreak could be more serious than the Ebola virus. Ebola killed

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government has just reported that more than 2,100 pregnant women in Colombia are infected

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The Zika virus is linked to a large rise in birth defects in Brazil and surrounding countries. In

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The World Health Organisation (WHO) has warned that the Zika virus outbreak in Latin America could turn

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frightening. Warmer weather means the mosquito that carries the virus is also spreading worldwide.

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born with microcephaly last year. This compares to fewer than 150 cases in 2014. The Colombian

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than normal, and with brain damage. Health officials in Brazil reported that around 4,000 babies were

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by the end of 2016. The virus has been advancing across South and Central America in the past