Post-infection symptoms up to 24 months after COVID-19: a matched cohort study in Berlin, Germany
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View abstract on PubMed
Summary
This summary is machine-generated.Long COVID symptoms affected 42.9% of mild COVID-19 survivors for up to 24 months. Many symptoms resolved within 6.5 months, but some, like taste/smell loss, persisted longer.
Area Of Science
- Infectious Diseases
- Public Health
- Epidemiology
Background
- Long-term health effects of mild COVID-19 (Coronavirus Disease 2019) are not well understood.
- Estimating the prevalence and time course of post-COVID-19 symptoms is crucial for patient care and public health strategies.
Purpose Of The Study
- To estimate the prevalence of long-term health consequences after mild COVID-19.
- To describe the time course of signs and symptoms for up to 24 months post-SARS-CoV-2 (Severe Acute Respiratory Syndrome Coronavirus 2) infection.
Main Methods
- A matched cohort study was conducted with 576 former COVID-19 patients and 302 uninfected individuals.
- Participants completed a retrospective monthly symptom questionnaire for up to 24 months post-testing.
Main Results
- 42.9% of former COVID-19 patients reported symptoms compatible with long COVID, compared to 21.2% in the uninfected group.
- Disturbed taste/smell, memory difficulties, and shortness of breath were most common among COVID-19 survivors.
- Symptoms typically resolved within a median of 6.5 months, though taste/smell and cognitive issues persisted longer. Hospitalization, symptomatic infection, low income, and female sex were associated factors.
Conclusions
- Post-COVID-19 symptoms in mild cases often resolve within six months, but can persist longer.
- A significant percentage of uninfected individuals also reported long COVID-compatible symptoms, suggesting potential for misclassification.
- The current definition of long COVID may need revision to improve diagnostic accuracy and prevalence estimates.
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