Centers for Disease Control and Prevention | Anosmia in COVID-19: Underlying mechanisms and assessment of an olfactory route to brain infection |
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Coronavirus disease 2019 COVID-19 : How COVID-19 spreads | The common cold in adults: Diagnosis and clinical features |
Similarities and differences between flu and COVID-19.
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Allergic rhinitis: Clinical manifestations, epidemiology, and diagnosis | Social distancing against COVID-19: Implication for the control of influenza |