My 3 year old was in contact with a child at school who tested positive for covid. should my child be tested? can my other children still go to class etc?

What contact?: If your child was within close proximity to the child who tested positive for more than 15 minutes, then yes, your child should be both quarantined and tested. Siblings should also be quarantined for 10 days, as symptoms can take that long to appear after an exposure. Wear masks if must go out oi n public. Frequent handwashing for all family members.