Provincial program advisor for education, Keith Tangui, said the three primary schools are Omili in Lae, Erap in Nawaeb district and Menyamya.
He said three teachers in Menyamya primary have contracted the virus, including a Grade Seven student.
“Omili we have got one teacher who was infected with COVID-19, including Erap,” stated Tangui.
Tangui said head teachers have already started contact tracing, where persons of interest will be isolated.
“Those who are suspected of having COVID will be transferred down to the Sir Ignatius Kilage Stadium to get tested.