Also in the release on Wednesday were more details about continued West Nile virus testing of mosquitoes in York County, which now ranks first in the state with 291 positive samples.
There have been no reported cases of the West Nile Virus to humans in Delaware County.
So far there have been no West Nile deaths this year, compared to the two deaths each in 2016 and 2017.
The peak season for West Nile runs through September. "It could have flown in from Lewis County", he said.
In addition to the one positive human in York County, Smith said there were also two positive tests in Franklin County, and another in Allegheny County on Wednesday.
West Nile Virus has been detected once more in Worcester.
Of those, seven had the more serious "neuro-invasive" disease, with obvious symptoms.
West Nile continues to show up in local test pools.
Based on the number of positive mosquito samples so far, "overall WNV activity in California is less than previous year", officials said Tuesday.
"With this August heat going into September, the increase in complaints, I think we may be headed toward a positive pool or positive bird coming", said Ventura. The exposure to WNV through mosquito bites occurred out of state. To prevent mosquito bites, residents are advised to use an insect repellent containing at least 30 percent DEET (lower concentration for children) and stay indoors at dawn and dusk.
Why? Smith says it's because "people still aren't cleaning up or maintaining swimming pools".
Ventura assures us that, yes, he and his colleagues wear protective clothing when out in the field.
There has been one confirmed human case of West Nile virus this year.
Wennekamp says it's rare to see cases in animals other than birds and horses. This RNA is then amplified and dyed with various reagents and read through an instrument using a constant temperature to quickly identify the presence or absence of West Nile virus. "This is not the kind of swine flu that anyone should worry about".