COVID-19 outbreak declared at Amherstview Public School

Kingston, Frontenac, Lennox and Addington (KFL&A) Public Health have declared an outbreak of COVID-19 at Amherstview Public School.
The outbreak was officially declared on Friday, Dec. 17, 2021, however, according to the active COVID-19 case listing provided by the Limestone District School Board (LDSB), the first cases were detected at the school on Tuesday, Dec. 14, 2021, and included one student case, and one case among staff. Three further cases were detected on Thursday, Dec. 16, 2021 and, although all cases in the outbreak are within one class cohort, the school has now moved to remote learning, although it appears that pivot occurred prior to the declaration of an outbreak, as that decision occurred one week ago today when eight LDSB schools transitioned to online learning.
According to KFL&A Public Health, there are five active cases involved in the outbreak at Amherstview Public School, with two of the seven total cases resolved. The LDSB only lists five cases involved in the outbreak. It is unclear what the reason is for this discrepancy.
Currently, the LDSB is listing 118 active cases of COVID-19 within the board, and 11 LDSB schools are currently dealing with declared outbreaks. According to KFL&A Public Health, there are 19 active outbreaks in schools from education boards within the region, consisting of a total 97 active cases in local schools.
It is possible more cases may be added to this outbreak after the COVID-19 data for Monday, Dec. 20, 2021 is published by KFL&A Public Health.