It comes after officials said one person at Delran High School and two people at Delran Intermediate Schools tested positive for coronavirus.
In a letter to parents, the superintendent says the varsity and JV football team and coaching staff are now in quarantine.
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All in-person team activities are suspended until September 29.
According to contract tracers, all three cases are the result of household exposure and do not warrant a shutdown of any schools.
Delran is scheduled to open its 2020 football season against Cinnaminson on October 2.