Corpus overview


MeSH Disease

Human Phenotype

Cough (1)

Fatigue (1)

Myalgia (1)

Headache (1)

Fever (1)



There are no seroprevalence terms in the subcorpus

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    A primary care approach to the COVID-19 pandemic: clinical features and natural history of 2,073 suspected cases in the Corona Sao Caetano programme, Sao Paulo, Brazil

    Authors: Fabio E Leal; Maria C Mendes-Correa; Lewis F Buss; Silvia F Costa; Joao CS Bizario; Sonia RP Souza; Osorio Thomaz; Tania R Tozetto-Mendoza; Lucy S Villas-Boas; Lea CO Silva; Regina MZ Grespan; Ligia Capuani; Renata Buccheri; Helves Domingues; Neal DE Alexander; Philippe Mayaud; Ester C Sabino

    doi:10.1101/2020.06.23.20138081 Date: 2020-06-23 Source: medRxiv

    Background: Despite most cases not requiring hospital care, there are limited community-based clinical data on COVID-19. Methods and findings: The Corona Sao Caetano program is a primary care initiative offering COVID-19 care to all residents of Sao Caetano do Sul, Brazil. After triage of potentially severe cases, consecutive patients presenting between 13th April and 13th May 2020 were tested at home with SARS-CoV-2 reverse transcriptase (RT) PCR; positive patients were followed up for 14 days. RT-PCR-negative patients were offered SARS-CoV-2 serology. We describe the clinical features, virology and natural history of this prospective population-based cohort. Of 2,073 suspected COVID-19 cases, 1,583 (76.4%) were tested by RT-PCR, of whom 444 (28.0%, 95%CI: 25.9% - 30.3%) were positive; 604/1,136 (53%) RT-PCR-negative patients underwent serology, of whom 52 (8.6%) tested SARS-CoV-2 seropositive. The most common symptoms of COVID-19 were cough HP, fatigue HP fatigue MESHD, myalgia HP myalgia MESHD and headache HP headache MESHD; whereas self-reported fever HP fever MESHD, anosmia HP anosmia MESHD, and ageusia MESHD were most associated with a positive COVID-19 diagnosis. RT-PCR cycle thresholds were lower in men, older patients, those with fever HP fever MESHD and arthralgia HP arthralgia MESHD, and around symptom onset TRANS. The rates of hospitalization and death MESHD among 444 RT-PCR-positive cases were 6.7% and 0.7%, respectively, with older age TRANS and obesity HP obesity MESHD more frequent in the hospitalized group. Conclusions: COVID-19 presents similarly to other mild respiratory disease MESHD in primary care. Some symptoms assist the differential diagnosis. Most patients can be managed at home.

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MeSH Disease
Human Phenotype

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