SAN ANTONIO -- Two more cases of the West Nile virus have been confirmed in San Antonio.
There are now 13 cases of the virus here. In two of those cases, the victims died.
Most people infected with West Nile virus will not have any signs of illness. Only about 1 out of 150 people infected with the virus will develop the more severe form of the disease. People older than 50 have the highest risk of having the more severe form.
The incubation period of West Nile virus in humans is three to 14 days.
CLICK HERE to find out more about West Nile cases in Texas.
CLICK HERE to read about why West Nile is so bad this year.