Zika Virus Just Made Its Way Into 2 More Countries

The Zika virus is expanding its reach, particularly in the Americas.

And on Tuesday, The CDC announced two more islands to its Zika travel advisory: Trinidad and Tobago and the Marshall Islands.

The virus, transmitted mainly via mosquitoes, has been identified in the US but only in people who’ve recently traveled to Zika hot spots. Once infected with Zika, only about 20% of people ever show symptoms, which most commonly include fever, rash, joint pain, and red eyes. There is no vaccine or treatment available for the virus. One reason Zika is troubling is because it has been linked with birth defects in babies whose mothers have had Zika symptoms and a neurological condition called Guillain-Barré Syndrome.

Here are the 34 countries and territories where the virus had been transmitted locally as of Tuesday, February 23:

BI Graphic_Zika VirusDylan Roach/Business Insider

To show just how rapidly how this virus had gained a foothold in the Americas, we’ve created a GIF displaying all the places the Zika virus has spread through local transmission since the start of the outbreak, including the most recent travel advisories by the CDC.

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