8. India reports 1st Zika virus infections
India's health ministry says it has confirmed its first cases of Zika virus infections.
The mosquito-borne disease has mainly been spreading in Central and South America and Southeast Asia.
Zika infections during pregnancy can cause birth defects such as microcephaly, which causes babies to be born with unusually small heads.
The Indian authorities say 3 cases of the disease were confirmed in the western state of Gujarat in the one-year period through January.
The patients were a 64-year-old man and 2 women, aged 22 and 34. None of them had traveled abroad.
The women were reportedly pregnant.
The health ministry says the infections occurred in a limited area, but it has been taking steps to prevent the further spread of the Zika virus.