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Zhu N et al. China Novel Coronavirus Investigating and Research Team, 2020. A novel coronavirus from patients with pneumonia in China, 2019. N Engl J Med 382: 727–733.
Holshue ML et al. Washington State 2019-nCoV Case Investigation Team, 2020. First case of 2019 novel coronavirus in the United States. N Engl J Med 382: 929–936.
Brazilian Ministry of Health, 2020. Coronavirus (COVID-19). Available at: https://covid.saude.gov.br/. Accessed April 24, 2020.
Lan L, Xu D, Ye G, Xia C, Wang S, Li Y, Xu H, 2020. Positive RT-PCR test results in patients recovered from COVID-19. JAMA 323: 1502–1503.
Xing Y, Mo P, Xiao Y, Zhao O, Zhang Y, Wang F, 2020. Post-discharge surveillance and positive virus detection in two medical staff recovered from Coronavirus disease 2019 (COVID-19), China, January to February 2020. Euro Surveill 25: 2000191.
Xiao AT, Tong YX, Zhang S, 2020. False-negative of RT-PCR and prolonged nucleic acid conversion in COVID-19: rather than recurrence. J Med Virol, doi: 10.1002/jmv.25855.
Young BE et al. Singapore 2019 Novel Coronavirus Outbreak Research Team, 2020. Epidemiologic features and clinical course of patients with SARS-CoV-2 in Singapore. JAMA 232: 1488–1494.
Ye G, Pan Z, Pan Y, Deng Q, Chen L, Li J, Li Y, Wang X, 2020. Clinical characteristics of severe acute respiratory syndrome coronavirus 2 reactivation. J Infect 80: e14–e17.
Batisse D et al. 2020. Clinical recurrences of COVID-19 symptoms after recovery: viral relapse, reinfection or inflammatory rebound? J Infect, doi: 10.1016/j.jinf.2020.06.073.
Lemos DRQ et al. 2020. Health system collapse 45 days after the detection of COVID-19 in Ceará, northeast Brazil: a preliminary analysis. Rev Soc Bras Med Trop 53: e20200354.
Graepel KW, Kochhar S, Clayton EW, Edwards KE, 2020. Balancing expediency and scientific rigor in severe acute respiratory syndrome coronavirus 2 vaccine development. J Infect Dis 222: 180–182.