What kind of test was done? If it's RTPCR, positive report suggests infection and yes report is correct. Though the child is asymptomatic, he can still be a carrier and so are the chances for transfer of infection.
Next Steps
Keep him in isolation for 2 weeks and as long as he doesn't have symptoms.. hydration, zinc and multivitamin should suffice.
Health Tips
please consult online or in person if any symptoms arise. look for any fever, sore throat, fast breathing, urine output and his activity in general