Runny nose as a symptom of covid-19
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Runny Nose as a COVID-19 Symptom: Prevalence and Clinical Significance
Prevalence of Runny Nose (Rhinorrhea) in COVID-19 Patients
Runny nose, also known as rhinorrhea, is recognized as a symptom of COVID-19, though it is less common than symptoms like fever and cough. Studies in both hospitalized and non-hospitalized patients have found that runny nose occurs in a notable minority of cases. For example, one study of hospitalized patients reported that 28% experienced runny nose or rhinorrhea as part of their illness . Another study in non-hospitalized, quarantined patients found that 26.6% reported runny nose as an initial symptom, with the symptom being significantly more common in women . A machine learning analysis of early-stage COVID-19 symptoms identified runny nose in 8.43% of cases, making it less frequent than fever or cough but still present in a subset of patients . Larger reviews of ENT symptoms in COVID-19 patients have reported runny nose in 2.1% to 28% of cases, depending on the population and study design 16.
Runny Nose in Children and Pediatric COVID-19
In children, runny nose or nasal congestion is often the most frequently reported symptom among those tested for COVID-19. One pediatric study found that 47.6% of SARS-CoV-2–positive children had runny nose or nasal congestion, though this symptom was also common in children who tested negative, making it less specific for COVID-19 diagnosis . Another follow-up study of children with COVID-19 reported that runny nose could persist for months after infection, though the frequency decreased over time .
Runny Nose in COVID-19 Reinfection and Risk Factors
Runny nose, along with nasal congestion, has been identified as a risk factor for COVID-19 reinfection. Patients who experienced these symptoms during their initial infection were more likely to test positive again after recovery, especially if they were older or had low lymphocyte counts .
Comparison with Other Respiratory Diseases
Runny nose is a common symptom in many respiratory illnesses, including the common cold and influenza. While it can occur in COVID-19, it is generally less frequent and less specific than symptoms like fever, cough, and loss of taste or smell. The presence of runny nose alone is not a strong indicator of COVID-19, as it overlaps with symptoms of other viral infections and allergies 46910.
Gender Differences in Runny Nose Presentation
Some research has found that runny nose is more frequently reported in women with COVID-19 compared to men, and it may appear in combination with other symptoms such as cough .
Conclusion
Runny nose is a recognized but less common symptom of COVID-19, occurring in a minority of both adult and pediatric cases. It is more prevalent in children and may persist after the acute phase of infection. However, because runny nose is also common in other respiratory illnesses, it is not a specific indicator of COVID-19 on its own. Its presence, especially when combined with other symptoms or in the context of known exposure, should prompt consideration of COVID-19, but laboratory testing remains essential for diagnosis.
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