The school would continue to keep the community informed as the Covid-19 situation unfolded.
On Tuesday this week Forgie informed parents that one of the exchange students was taken to a medical centre after two other students expressed concerns about him coughing and sneezing after PE and a swim.
A doctor examined him and did not believe he had Covid-19 but ran a test as a precaution.
A second student was later also tested as a precaution while all the students stayed at home in isolation.
Cleaners had disinfected areas at the school where the students had been.
The homestay father and international staff had not seen the student display any symptoms.
Northland so far has one confirmed case of Covid-19, a man in his 20s who returned to New Zealand on a flight from Paris via Abu Dhabi and Sydney.
Health authorities say he isolated himself as soon as he became unwell and contacted his GP.
He had not been in any hospitals, accident and medical centres or emergency departments. He is being visited daily by a public health nurse.
The Health Ministry is not saying where in Northland he is based.