In an emergency situation I accompanied a boy to the hospital after 5 hrs they declared him a covid positive, but we were shocked to know, since he fall from a building and lost sense and functional ability of hands and legs. How can we rely on results of RTPCR or Rapid test.? How it affects us if we were as-symptotes? Can a asymptomatic spread the covid, if yes, how many days it would be to have lethality of spreading?