CDC: US Omicron Cases were From Vaccinated


According to the US Centers for Diseases Control and Prevention (CDC), of the 43 Omicron cases identified in US, most had mild symptoms and most were vaccinated and 14 of them had booster dose as well.

One vaccinated patient was hospitalized for 2 days, and no deaths have been reported to date. Case investigations have identified exposures associated with international and domestic travel, large public events, and household transmission.

– CDC Response Team (source: CNN Health)

The CDC Response Team added further details: “The earliest date of symptom onset was November 15 in a person with a history of international travel. Fourteen (33%) persons reported international travel during the 14 days preceding symptom onset or receipt of a positive test result.”

The most commonly reported symptoms were cough, fatigue, and congestion or runny nose.

– CDC Researchers (source: CNN Health)

The CDC Response team added:

CDC Response team on Omicron
  • “Given the 2-3 weeks from the time of specimen collection to availability of sequence data for analysis, it is likely that additional infections with Omicron from late November will be detected during the coming days.
  • “Scientists around the world are working to rapidly learn more about the Omicron variant to better understand how easily it might be transmitted and the effectiveness of current diagnostic tests, vaccines, and therapeutics against this variant.
  • “Many of the first reported cases of Omicron variant infection appear to be mild, although as with all variants, a lag exists between infection and more severe outcomes, and symptoms would be expected to be milder in vaccinated persons and those with previous SARS-CoV-2 infection than in unvaccinated persons.
  • “Even if most infections are mild, a highly transmissible variant could result in enough cases to overwhelm health systems. The clinical severity of infection with the Omicron variant will become better understood as additional cases are identified and investigated.
  • “Scientists in South Africa and elsewhere have established systems that allow study of the laboratory, clinical, and epidemiologic characteristics; CDC is collaborating with health officials around the world to learn more about the characteristics of patients with Omicron variant infections.
  • “Booster doses are especially urgent for those at higher risk of severe disease, such as persons residing in nursing homes and long-term care facilities. In addition, CDC recommends that everyone aged 2 years or older wear masks in public indoor places in areas of substantial or high transmission.
  • “Implementation of concurrent prevention strategies, including vaccination, masking, improving ventilation, testing, quarantine, and isolation, are recommended to slow transmission of SARS-CoV-2 and to protect against severe illness, hospitalization, and death from COVID-19.
  • “A number of measures have been implemented throughout the COVID-19 pandemic to reduce the introduction and spread of SARS-CoV-2 in the United States through travel. For example, masks are required in indoor areas on public transportation conveyances traveling into, within, or out of the United States, and on the indoor premises of U.S. transportation hubs.”

Source: CNN Health

The CDC has recommended measures to slow the domestic spread of the Omicron.

Coronavirus-19 vaccination watch

According to the US Centers for Disease Control and Prevention (CDC) COVID vaccination tracker page (as of Dec 11, 9 a.m.) 594,372,295 doses have been distributed and 482,695,970 doses administered. According MDH COVID-19 Response vaccine data (as of Dec 8) a total of 8,194,196 doses of Covid-19 (Pfizer & Moderna) vaccines have been administered in Minnesota. According to the MDH latest tally (as of Dec 10) the confirmed COVID-19 cases in Minnesota are 956,779 (out of 15,369,673 tested) with 9,872 deaths.