Coronavirus Disease 2019

Omicron Variant

Coronavirus disease 2019 (COVID-19) is a contagious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The first case was identified in December 2019 and the disease has since spread worldwide, leading to an ongoing pandemic. The Omicron variant likely will spread more easily than the original SARS-CoV-2 virus and how easily Omicron spreads compared to Delta remains unknown.

The Omicron variant likely will spread more easily than the original SARS-CoV-2 virus and how easily Omicron spreads compared to Delta remains unknown. CDC expects that anyone with Omicron infection can spread the virus to others, even if they are vaccinated or don’t have symptoms.

Symptoms

Muscle pain

common

Fatigue

common

Headache

Steady
Frontal region, In the temporal region, Coming from the back of head
Chronic or persistent pain

common

Cough with mucus or without mucus

Lasting 3 weeks or less
Dry
Dry at first then production of clear/white mucus, Production of clear-white mucus, Dry at first then production of yellowish-gray mucus, Production of yellowish-gray mucus

common

Runny nose

or Blocked nose

common

Pain, scratchiness or irritation of the throat

common

Fever

Greater than or equal to 38°C (100.4°F), Less than 38°C (100. 4°F)
With chills

common

Sternutation

common

Diarrhea

Strained voice

Difficulty breathing

Dizziness

Confusion

Reduced ability or completely losing sense of smell

or Impaired taste

Risk factors

Contact with sick person of covid19

Treatment

Scientists are working to determine how well existing treatments for COVID-19 work. Based on the changed genetic make-up of Omicron, some treatments are likely to remain effective while others may be less effective.