WASHINGTON, Feb. 8, 2015 — Diseases from mosquito bites kill hundreds of thousands of people every year worldwide. Now another mosquito-borne illness is making headlines: the once-rare Zika virus. The virus has spread throughout Brazil, and the World Health Organization has declared Zika a public health emergency. Reactions looks at how mosquitoes spread diseases, including Zika, and how you can help protect yourself. Check it out here: https://youtu.be/GBpheE7LrqE.