Cluster cases now total five, in addition to a detection in Panorama City and previous detections in El Monte and San Diego County.
Cases in the region have topped 11.7 million and continue to rise in the Central American Isthmus and Mexico, as the South America faces the start another season.
The latest case is from El Monte and doesn't appear to be related to the county's earlier four illnesses.
California has reported 63 West Nile virus infections this year, including many in the Central Valley.
The latest local dengue case in Los Angeles county isn't related to the cluster reported earlier this month.
All 3 cases are in Baldwin Park, and though the overall risk is low, officials call the development concerning.
Like most other H9N2 cases, China's latest illness involves a young child.
The case follows two local cases reported in 2023, one in Pasadena and the other in Long Beach.
From 2016 through 2018, a dengue outbreak in American Samoa resulted in 660 confirmed cases.
The WHO said Iran's risk is high due to the presence of Aedes mosquitoes and an influx of people from endemic countries.
