There are reports of false negatives; as well. My youngest son had symptoms, yet his test was negative. He had a sore throat, body aches, a headache, and debilitating fatigue. I took him 3 weeks to recover; even though, he is a college athlete in great physical condition. 11 people on his track team contracted Covid-19. He was tested with 4 guys, he was the only one who had a negative result, his roommate also tested positive.