CEDAR RAPIDS, Iowa (CBS2/FOX28) -- Earlier this week, the World Health Organization declared Zika virus, a public health emergency of international concern. For a while, many people believed the virus was transmitted through mosquitoes . However, in Texas a patient contracted the virus through sexual intercourse. The patient's partner contracted the virus after traveling outside of the country.
In all, more than thirty cases have been reported in the United States. Many people who have contracted the virus have traveled outside of the United States.
Scientists believe the virus causes microcephaly in fetuses of pregnant women. Babies with microcephaly, are born with smaller heads and brain damage. Scientists are working hard to find a cure.
"It lives extremely well in your home and we have seen dengue now in over 100 countries in the world. That's why I think the W-H-O is being precautionary and saying Zika could spread," said Global Head Research of Sanofi Pasteur, Nicolas Jackson. The virus thrives in urban areas.
So far, Brazil is the hardest hit country. According to the Washington Post, one million cases have been reported in the country alone.
If you want to learn more about the Zika virus, you should visit Centers for Disease Control and Prevention website, www.cdc.gov.