The virus survives within several types of birds and is transmitted when a mosquito feeds off of an infected bird. The disease can infect humans, horses, and birds.
While serious illness is possible, only one in 150 infected people develop a serious or fatal illness, according to the Center for Disease Control and Prevention.
Most people who have the virus do not have any symptoms. Around eight in 10 people do not face any sort of symptoms while they have the virus, according to the CDC.
The best way to protect yourselves from the virus is by using insect repellent and to wear long sleeve shorts and pants to decrease the possibility of a mosquito bite.
source: NBC Southern California