The World Health Organization (WHO) first identified Omicron in November 2021. A study reported in 2022 found sneezing was becoming quite common with COVID-19. In that study, researchers found ...

Symptoms of the KP strains are similar to those of the parent Omicron strain, including: Runny nose, Headache, Fatigue (both mild or severe), Sneezing, Sore throat. Muscle aches, fever or chills ...