COVID-19: Omicron Variant
CDC is working with state and local public health officials to monitor the spread of Omicron. As of December 20, 2021, Omicron has been detected in most states and territories and is rapidly increasing the proportion of COVID-19 cases it is causing.
What We Know about Omicron
CDC has been collaborating with global public health and industry partners to learn about Omicron, as we continue to monitor its course. We don’t yet know how easily it spreads, the severity of illness it causes, or how well available vaccines and medications work against it.
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.
More data are needed to know if Omicron infections, and especially reinfections and breakthrough infections in people who are fully vaccinated, cause more severe illness or death than infection with other variants.
Current vaccines are expected to protect against severe illness, hospitalizations, and deaths due to infection with the Omicron variant. However, breakthrough infections in people who are fully vaccinated are likely to occur. With other variants, like Delta, vaccines have remained effective at preventing severe illness, hospitalizations, and death. The recent emergence of Omicron further emphasizes the importance of vaccination and boosters.
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.
We have the Tools to Fight Omicron
Vaccines remain the best public health measure to protect people from COVID-19, slow transmission, and reduce the likelihood of new variants emerging.
- COVID-19 vaccines are highly effective at preventing severe illness, hospitalizations, and death.
- Scientists are currently investigating Omicron, including how protected fully vaccinated people will be against infection, hospitalization, and death.
- CDC recommends that everyone 5 years and older protect themselves from COVID-19 by getting fully vaccinated.
- CDC recommends that everyone ages 18 years and older should get a booster shot at least two months after their initial J&J/Janssen vaccine or six months after completing their primary COVID-19 vaccination series of Pfizer-BioNTech or Moderna.
Masks offer protection against all variants.
- CDC continues to recommend wearing a mask in public indoor settings in areas of substantial or high community transmission, regardless of vaccination status.
- CDC provides advice about masks for people who want to learn more about what type of mask is right for them depending on their circumstances.
Tests can tell you if you are currently infected with COVID-19.
- Two types of tests are used to test for current infection: nucleic acid amplification tests (NAATs) and antigen tests. NAAT and antigen tests can only tell you if you have a current infection.
- Individuals can use the COVID-19 Viral Testing Tool to help determine what kind of test to seek.
- Additional tests would be needed to determine if your infection was caused by Omicron.
- Visit your state, tribal, local, or territorial health department’s website to look for the latest local information on testing.
- Self-tests can be used at home or anywhere, are easy to use, and produce rapid results.
- If your self-test has a positive result, stay home or isolate for 10 days, wear a mask if you have contact with others, and call your healthcare provider.
- If you have any questions about your self-test result, call your healthcare provider or public health department.
Until we know more about the risk of Omicron, it is important to use all tools available to protect yourself and others.
What CDC is Doing to Learn about Omicron
CDC scientists are working with partners to gather data and virus samples that can be studied to answer important questions about the Omicron variant. Scientific experiments have already started. CDC will provide updates as soon as possible.
In the United States, CDC uses genomic surveillance to track variants of SARS-CoV-2, the virus that causes COVID-19 to more quickly identify and act upon these findings to best protect the public’s health. CDC established multiple ways to connect and share genomic sequence data being produced by CDC, public health laboratories, and commercial diagnostic laboratories within publicly accessible databases maintained by the National Center for Biotechnology Information (NCBI) and the Global Initiative on Sharing Avian Influenza Data (GISAID). If a variant is circulating at 0.1% frequency, there is a >99% chance that it will be detected in CDC’s national genomic surveillance.
Power Greens Breakfast Skillet
• 3-4 eggs
• 1 medium yellow onion. sliced into thin rings
• 4 cups assorted greens like kale, spinach, baby swiss chard (chopped if not baby greens)
• 3 tablespoons freshly grated Parmesan cheese
• 1 tablespoon butter or olive oil
• Salt & cracked black pepper
• Bacon & sourdough toast (optional but recommended)
1. In a medium size cast iron skillet, melt butter over medium-low heat.
2. Add onion, stir to coat, and cover pan with a lid.
3. Allow at least 30 minutes for the onions to caramelize. Stir occasionally and, while doing so, make sure the condensation that collects on the lid returns to the pan.
4. Onions will brown premature and not actually caramelize if they dry out or the heat is too high.
5. When onions are done, set the oven broiler to low.
6. Add greens to the skillet, and continue to cook on the stove until wilted.
7. Form 3 wells for the eggs. Crack one egg into each well, and cook for 3 minutes until whites start to set.
8. Sprinkle with cheese before transferring to oven and broil eggs until they are cooked to your liking.
Serve with bacon and sourdough toast.
Total time: 10 minutes
Total Fat 8.7g
Saturated Fat 3.3g
Total Carbohydrate 14.8g
Dietary Fiber 1.9g
Total Sugars 1.8g