Health experts are warning that the highly contagious COVID-19 variant, Omicron, is expected to cause the greatest surge in COVID-19 infections to date in the coming months. The Centers for Disease Control and Prevention and the North Carolina Department of Health and Human Services urge people to get vaccinated with an mRNA vaccine (Pfizer or Moderna) as soon as possible and to get a booster as soon as they are eligible to help prevent serious illness, hospitalization and death.