Omicron variant

The Omicron variant is a strain of the SARS-CoV-2 virus that causes COVID-19. First identified in late 2021, it has numerous mutations, particularly in the spike protein, which may help it spread more easily and potentially evade immunity from vaccines or previous infections. Omicron spreads faster than earlier variants, leading to increased cases, but often results in milder illness, especially among vaccinated individuals. Health organizations monitor it closely to assess its impact on public health, vaccination strategies, and treatment approaches.