Zika virus disease is a mosquito born malady spreading throughout South America. It is transmitted to people through the bite of an infected Aedes mosquito. The most common symptoms of Zika are fever, rash, joint pain, and conjunctivitis (red eyes). This virus is running amok in Brazil. Scientists worry that it will quickly cross US borders. It causes a fever and bright red eyes and it lasts about a week. There is some evidence that it causes birth defects in pregnant women. Many scientists in the US are worried that it is going to spread like wildfire and have a terrible effect on the world’s birthrate and possibly damage the human population as a whole.