Zika's march through the Americas

We have an opportunity to stop the spread of Zika virus before it advances further into Central America, the Caribbean and possibly the Gulf Coast of the United States.

When it is transmitted by mosquitoes, Zika virus typically causes fever, rash and headache. In many infected individuals, Zika will produce no symptoms at all, while in a small percentage of people it produces Guillan Barre syndrome, an autoimmune disease of the peripheral nerves that can cause more severe illness.