PMID- 12781535 OWN - NLM STAT- MEDLINE DCOM- 20030613 LR - 20221207 IS - 0140-6736 (Print) IS - 1474-547X (Electronic) IS - 0140-6736 (Linking) VI - 361 IP - 9371 DP - 2003 May 24 TI - Clinical progression and viral load in a community outbreak of coronavirus-associated SARS pneumonia: a prospective study. PG - 1767-72 AB - BACKGROUND: We investigated the temporal progression of the clinical, radiological, and virological changes in a community outbreak of severe acute respiratory syndrome (SARS). METHODS: We followed up 75 patients for 3 weeks managed with a standard treatment protocol of ribavirin and corticosteroids, and assessed the pattern of clinical disease, viral load, risk factors for poor clinical outcome, and the usefulness of virological diagnostic methods. FINDINGS: Fever and pneumonia initially improved but 64 (85%) patients developed recurrent fever after a mean of 8.9 (SD 3.1) days, 55 (73%) had watery diarrhoea after 7.5 (2.3) days, 60 (80%) had radiological worsening after 7.4 (2.2) days, and respiratory symptoms worsened in 34 (45%) after 8.6 (3.0) days. In 34 (45%) patients, improvement of initial pulmonary lesions was associated with appearance of new radiological lesions at other sites. Nine (12%) patients developed spontaneous pneumomediastinum and 15 (20%) developed acute respiratory distress syndrome (ARDS) in week 3. Quantitative reverse-transcriptase (RT) PCR of nasopharyngeal aspirates in 14 patients (four with ARDS) showed peak viral load at day 10, and at day 15 a load lower than at admission. Age and chronic hepatitis B virus infection treated with lamivudine were independent significant risk factors for progression to ARDS (p=0.001). SARS-associated coronavirus in faeces was seen on RT-PCR in 65 (97%) of 67 patients at day 14. The mean time to seroconversion was 20 days. INTERPRETATION: The consistent clinical progression, shifting radiological infiltrates, and an inverted V viral-load profile suggest that worsening in week 2 is unrelated to uncontrolled viral replication but may be related to immunopathological damage. FAU - Peiris, J S M AU - Peiris JS AD - Department of Microbiology, Queen Mary Hospital, University of Hong Kong, Hong Kong, Special Administrative Region, China. FAU - Chu, C M AU - Chu CM FAU - Cheng, V C C AU - Cheng VC FAU - Chan, K S AU - Chan KS FAU - Hung, I F N AU - Hung IF FAU - Poon, L L M AU - Poon LL FAU - Law, K I AU - Law KI FAU - Tang, B S F AU - Tang BS FAU - Hon, T Y W AU - Hon TY FAU - Chan, C S AU - Chan CS FAU - Chan, K H AU - Chan KH FAU - Ng, J S C AU - Ng JS FAU - Zheng, B J AU - Zheng BJ FAU - Ng, W L AU - Ng WL FAU - Lai, R W M AU - Lai RW FAU - Guan, Y AU - Guan Y FAU - Yuen, K Y AU - Yuen KY CN - HKU/UCH SARS Study Group LA - eng GR - WT_/Wellcome Trust/United Kingdom GR - A195357/PHS HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - England TA - Lancet JT - Lancet (London, England) JID - 2985213R RN - 74469-00-4 (Amoxicillin-Potassium Clavulanate Combination) RN - A4P49JAZ9H (Ofloxacin) SB - IM CIN - J Infect. 2021 Jan;82(1):159-198. doi: 10.1016/j.jinf.2020.05.039. PMID: 32473230 MH - Administration, Oral MH - Adult MH - Aged MH - Amoxicillin-Potassium Clavulanate Combination/administration & dosage MH - Disease Outbreaks/*statistics & numerical data MH - Disease Progression MH - Female MH - Follow-Up Studies MH - Humans MH - Infusions, Intravenous MH - Length of Stay MH - Lung/diagnostic imaging MH - Male MH - Middle Aged MH - Ofloxacin MH - Pregnancy MH - Pregnancy Complications, Infectious/diagnosis/therapy MH - Pulse Therapy, Drug MH - Radiography MH - Severe acute respiratory syndrome-related coronavirus/*isolation & purification MH - Severe Acute Respiratory Syndrome/*diagnosis/drug therapy/*epidemiology/virology MH - Survival Rate MH - Viral Load/*statistics & numerical data PMC - PMC7112410 EDAT- 2003/06/05 05:00 MHDA- 2003/06/14 05:00 PMCR- 2003/05/22 CRDT- 2003/06/05 05:00 PHST- 2003/06/05 05:00 [pubmed] PHST- 2003/06/14 05:00 [medline] PHST- 2003/06/05 05:00 [entrez] PHST- 2003/05/22 00:00 [pmc-release] AID - S0140673603134125 [pii] AID - S0140-6736(03)13412-5 [pii] AID - 10.1016/s0140-6736(03)13412-5 [doi] PST - ppublish SO - Lancet. 2003 May 24;361(9371):1767-72. doi: 10.1016/s0140-6736(03)13412-5.