COVID-19 symptoms: Omicron vs. Delta

Omicron symptoms differ from Delta, with more upper respiratory symptoms and less frequent loss of smell.

Overview

The Omicron variant caused different symptoms compared to the Delta variant. Omicron was more likely to cause symptoms like a sore throat, runny nose, and headache, while Delta was more likely to cause loss of smell and a severe cough.

Symptoms

Omicron: sore throat, runny nose, headache, fatigue, sneezing. Delta: cough, shortness of breath, loss of smell, high fever.

Causes

Omicron tends to affect the upper respiratory tract (nose and throat) more, while Delta more often affected the lower respiratory tract (lungs).

Treatment

Treatment is similar for both variants, with supportive care and antivirals for high-risk cases.

When to See a Doctor

Seek medical care for any severe symptoms, regardless of variant.