Omicron cases in the US have hit 79% of fully vaccinated

THE UNITED STATES (US) — Omicron cases in the US hit 79% of fully vaccinated persons as of this time, a report by the Centers for Disease Control and Prevention (CDC) posted, Friday, Dec. 10, 2021.

The report shows that of 43 cases of COVID-19 attributed to the Omicron variant, 34 or 79% had been fully vaccinated with the COVID-19 vaccines authorized and approved by the Food and Drug Administration. Fourteen or 33% of them had received booster shots. It also shows that 25 or almost 60% of these Omicron variant cases occurred in persons aged 18 – 39 years.

Characteristics of reported confirmed COVID-19 Omicron cases in the US as of December 1–8, 2021

Age Group YearsNumber (%)
<184 (9)
18 – 3925 (58)
40 – 6410 (23)
≥654 (9)
COVID-19 Vaccination Status
Unvaccinated8 (19)
Partially Vaccinated0 (-)
Vaccinated20 (47)
Vaccinated plus an additional dose14 (33)
Unknown1 (2)
For the complete report of this Table, click here. Source: CDC

The report also said that the most commonly reported Omicron variant symptoms were cough, fatigue, and congestion, or runny nose. No deaths have been reported so far, and exposures are identified associated with international and domestic travel, large public events, and household transmission.

In the US, the first Omicron variant case was identified on Dec. 1, 2021. As the variant has been seen rapidly emerging globally, genomic surveillance systems should have been implemented together with global information-sharing, the report said.

Meanwhile, the COVID-19 Omicron variant was reported to the World Health Organization (WHO) on Nov. 24, 2021. It was first identified in specimens collected in Botswana on Nov. 11, 2021, and in South Africa on Nov. 14, 2021. WHO named the variant Omicron on Nov. 26, 2021, and hushed it as a variant of concern on Dec. 1, 2021, the same date the US confirmed its first Omicron variant case. RQJ

Source: SARS-CoV-2 B.1.1.529 (Omicron) Variant — United States, December 1–8, 2021. MMWR Morb Mortal Wkly Rep. ePub: 10 December 2021. DOI:

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