Topline:
The first human case of West Nile virus in Orange County this year has been detected, health officials announced Wednesday.The individual who tested positive is an Anaheim resident.
How it’s transmitted: West Nile virus is transmitted to humans through the bite of an infected Culex mosquito, which gets the virus from feeding on infected birds. Currently, there is no vaccine.
The symptoms: Most people who get infected will not experience symptoms. However, West Nile virus can lead to mild flu-like symptoms. Less than 1% of infected patients develop severe illness that affects the central nervous system. This typically manifests as meningitis, encephalitis or acute flaccid myelitis, according to the Centers for Disease Control and Prevention. People over 65 or who have chronic health conditions — including cancer, diabetes and high blood pressure — are at higher risk. Those with severe symptoms should seek immediate medical care.
What health officials say: “West Nile virus is endemic in Orange County, recurring every year during the summer months and continuing into the fall,” Dr. Regina Chinsio-Kwong, the county’s health officer, said in a statement. “There have been multiple detections of WNV positive mosquitoes in Orange County, signaling that this could be an intense WNV season.”…