J Sun, X Tang, R Bai, C Liang, L Zeng, H Lin… - Clinical Microbiology …, 2020 - Elsevier
… We found higher viral loads and prolonged shedding of virus RNA in severe cases of
COVID-19 in nasopharyngeal (1.3 × 10 6 vs 6.4 × 10 4 , p < 0.05; 7∼8 weeks) and throat (6.9 × 10 …