UPDATE: Eau Claire City-County Health Director Lieske Giese said the person who tested positive was in fact an Eau Claire County resident.
Giese said the health department just found out about the positive variant test on Wednesday, although the person was tested in late December.
She said the person's only close contacts were people who live in the same house and everyone was quarantined.
Giese said a certain percent of COVID tests are also tested for this new variant.
EAU CLAIRE COUNTY (WQOW) - Wisconsin health officials say the first new strain of COVID-19 found in Wisconsin on Tuesday was from someone tested in Eau Claire County.
Dr. Ryan Westergaard with the Wisconsin Department of Health Services said the person did travel internationally in the two weeks prior to testing positive for the strain.
Few other specific details about the case are immediately available.
The particular variant was first detected in England in November and December. Westergaard did not say where exactly this person traveled.
Health officials say it appears this strain spreads easier and quicker than the original strain, but there is no evidence it causes worse illness or an increase likelihood of dying.
This is a developing story and will be updated. Stay with News 18 for the latest.