Distinguishing between a cold, the Flu (influenza), an allergy, or Covid-19 can be very difficult. They each share similar signs and symptoms.

So how can you tell which illness you are experiencing?

See the attached or listed below chart, which compares some of the similar and different symptoms, treatment, preventions and potential complications.

Remember, each person is different and symptoms may vary per person. The chart will list, as a guide, the common occurrences.

Please note: Three of the listed illnesses are caused by viruses: Covid–19 (caused by Sars CoV-2), the Flu (caused by influenza A and B viruses), and the common cold (may be caused by rhinoviruses). There is no cure for the common cold (treatments are symptomatic and usually dissipate within 3-10 days). These viruses spread in similar ways and cause many of the same signs and symptoms. Because of the similarities it may be difficult to diagnose which condition you have. The best way to tell if you have covid-19 or the flu is to be tested. Seasonal allergies are caused by immune system responses triggered by exposure to allergens, such as seasonal trees or grass pollens.