What are the signs and symptoms of COVID-19? | If you have fever, cough, loss of taste or smell or certain other symptoms, you might have COVID-19. If you think you might have COVID-19 or think you... | By CDCFacebook

Allergy vs Cold Allergies and the common cold are both conditions that can cause similar symptoms, but they have different underlying causes. Here are the key differences between allergies and a cold: 1. Cause: - Allergies: Allergic reactions occur when the immune system reacts to substances (allergens) that are typically harmless. Common allergens include pollen, pet dander, certain foods, and dust mites. - Cold:Colds are caused by viruses, most commonly the rhinovirus. Other viruses, such as t

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