In Hays County, a recent development has been reported regarding the presence of West Nile virus. A mosquito trap in the area has tested positive for the virus. This is not an isolated incident, as it is the fourth mosquito trap to yield a positive result.

Further details about the location and implications of this finding are available from local news sources. Residents of West Lake Hills may want to consult these sources for more information on the situation. The fact that multiple mosquito traps have tested positive for West Nile virus suggests that the virus is present in the area, but specific details about the affected regions and any related health concerns are not provided here.