P.E.I.'s Chief Public Health Officer Dr. Heather Morrison announced three new cases of COVID-19 on Sunday.
One person is between the ages of 10 and 19, one is in their 20s and the other is in their 30s, a news release said.
"Two of the individuals are close contacts of a previously announced case associated with the outbreak at West Royalty Elementary School and have been in isolation," the release said.
"These two individuals previously tested negative and then tested positive on a second or subsequent test."
The other case is related to travel outside Atlantic Canada. That individual is currently self-isolating.
P.E.I.'s Education Department announced Saturday that classes will resume for West Royalty Elementary School and Ecole La-Belle Cloche on Monday.
Prince Edward Island currently has 47 active cases of COVID-19. There have been 284 positive cases since the pandemic began in March 2020.
Everyone is encouraged to follow routine prevention measures:
Wash hands frequently with soap and water.
Cough and sneeze into your elbow or a tissue.
Stay home if you are not feeling well.
Limit touching your eyes, nose and mouth.
Keep your circle of contacts small.
Physical distance — stay two metres (six feet) apart.
Don't share items like drinking glasses and water bottles.
Frequently clean surfaces like taps, doorknobs and countertops.
Visit a drop-in-clinic to be tested if you have COVID-19 symptoms.