Understanding the New Threat of Omicron BA.2

COVID-19 is still a pandemic for the unvaccinated.

We may be done with COVID, but it’s not done with us. No surprise, but there’s a new variant in town.

Omicron BA.2, otherwise known as “stealth Omicron,” is the genetic offspring of Omicron. This new variant has led to a spike in cases in Europe, is disrupting China’s zero-COVID strategy, and is now the cause of COVID in ~40 percent of cases in the northeastern United States. And BA.2 isn’t the only Omicron offspring here.

Wasn’t the pandemic supposed to be over? How could this be happening now? Easy. First, COVID-19 public health measures have been relaxed or eliminated. Second, the protectiveness of the vaccines (and previous COVID infections) continues to wane over time. And third, this variant appears to be even more transmissible than the highly contagious original Omicron variant that caused a massive outbreak in cases in December and January.

Am I concerned? No, and yes. I’m not concerned for any American who is fully vaccinated and boosted. Although BA.2 is super contagious, it doesn’t appear to result in increased hospitalizations and deaths in that group. Case in point: former President Obama and 95-year-old Queen Elizabeth both recently tested positive for COVID without experiencing significant illness.

I am concerned about the relatively low vaccination rates in the United States, when compared with other developed countries around the world. Sixty-five percent of Americans are fully vaccinated. The booster rate is only 29 percent. Neither are good enough.

COVID-19 is still a pandemic for the unvaccinated. The data is clear. The unvaccinated comprise the vast majority of hospitalizations and COVID deaths. We tend to forget that nearly a thousand Americans still die daily from this infectious disease – numbers that would be markedly reduced with improved vaccination rates. It’s almost inconceivable that we will surpass one million COVID deaths in April. Have we become numb to this daily carnage?

These are some of the questions I’m getting from my vaccinated patients:

  • Do I need a booster shot if I’m fully vaccinated? I would argue that you’re not fully vaccinated without a booster shot. There are some experts who believe that the mRNA vaccines should have been a three-shot series to begin with. We know that immunity wanes over time, especially after six months, and that the booster shot substantially increases protection. It’s easy to get a false sense of security with the huge drop in daily new cases over the past six weeks, but the new variant case spikes in China and Europe may be heralding a new wave here.
  • I had Omicron just after Christmas. Will that infection protect me from this new variant? Yes, for now. The new variant is genetically very similar to the original Omicron virus. We just don’t know how long the protection will last – but it’s assumed that it will be at least 3-4 months, with diminishing protection over time. Of course, that doesn’t mean that a previous Omicron infection will protect you from a genetically much different future variant. It likely won’t.
  • Should I get a second booster shot? Studies from Israel suggest that a second booster shot has a limited and only minimal short-term benefit. Personally, I’m going to wait for the likely development of an Omicron-specific booster (or a booster that targets future variants).

COVID-19 will become endemic, meaning it will never completely go away. As I’ve stated recently, just like with the flu, annual booster shots may become a reality.

My recommendations are as follows:

  • Wear a mask, and wear it correctly, wherever it’s required. If it’s not required, wear one if it will make you feel safer, and then pick the one that is most protective.
  • These vaccines are very safe. Please get vaccinated if you haven’t already done so. It will protect you, your loved ones, and a fragile healthcare system that has seen an exodus of workers, to a large degree from COVID fatigue.
  • Get boosted if you’re fully vaccinated. And wait on a second booster shot, unless you are significantly immunocompromised.

Do not fear BA.2. COVID-19 isn’t going to go away, but we can end the pandemic for everyone if we can improve our vaccination rates.

Facebook
Twitter
LinkedIn

Related Stories

Leave a Reply

Please log in to your account to comment on this article.

Featured Webcasts

Mastering Principal Diagnosis: Coding Precision, Medical Necessity, and Quality Impact

Mastering Principal Diagnosis: Coding Precision, Medical Necessity, and Quality Impact

Accurately determining the principal diagnosis is critical for compliant billing, appropriate reimbursement, and valid quality reporting — yet it remains one of the most subjective and error-prone areas in inpatient coding. In this expert-led session, Cheryl Ericson, RN, MS, CCDS, CDIP, demystifies the complexities of principal diagnosis assignment, bridging the gap between coding rules and clinical reality. Learn how to strengthen your organization’s coding accuracy, reduce denials, and ensure your documentation supports true medical necessity.

December 3, 2025

Proactive Denial Management: Data-Driven Strategies to Prevent Revenue Loss

Denials continue to delay reimbursement, increase administrative burden, and threaten financial stability across healthcare organizations. This essential webcast tackles the root causes—rising payer scrutiny, fragmented workflows, inconsistent documentation, and underused analytics—and offers proven, data-driven strategies to prevent and overturn denials. Attendees will gain practical tools to strengthen documentation and coding accuracy, engage clinicians effectively, and leverage predictive analytics and AI to identify risks before they impact revenue. Through real-world case examples and actionable guidance, this session empowers coding, CDI, and revenue cycle professionals to shift from reactive appeals to proactive denial prevention and revenue protection.

November 19, 2025
Sepsis: Bridging the Clinical Documentation and Coding Gap to Reduce Denials

Sepsis: Bridging the Clinical Documentation and Coding Gap to Reduce Denials

Sepsis remains one of the most frequently denied and contested diagnoses, creating costly revenue loss and compliance risks. In this webcast, Angela Comfort, DBA, MBA, RHIA, CDIP, CCS, CCS-P, provides practical, real-world strategies to align documentation with coding guidelines, reconcile Sepsis-2 and Sepsis-3 definitions, and apply compliant queries. You’ll learn how to identify and address documentation gaps, strengthen provider engagement, and defend diagnoses against payer scrutiny—equipping you to protect reimbursement, improve SOI/ROM capture, and reduce audit vulnerability in this high-risk area.

September 24, 2025

Trending News

Featured Webcasts

Surviving Federal Audits for Inpatient Rehab Facility Services

Surviving Federal Audits for Inpatient Rehab Facility Services

Federal auditors are zeroing in on Inpatient Rehabilitation Facility (IRF) and hospital rehab unit services, with OIG and CERT audits leading to millions in penalties—often due to documentation and administrative errors, not quality of care. Join compliance expert Michael Calahan, PA, MBA, to learn the five clinical “pillars” of IRF-PPS admissions, key documentation requirements, and real-life case lessons to help protect your revenue.

November 13, 2025
E/M Services Under Intensive Federal Scrutiny: Navigating Split/Shared, Incident-to & Critical Care Compliance in 2025-2026

E/M Services Under Intensive Federal Scrutiny: Navigating Split/Shared, Incident-to & Critical Care Compliance in 2025-2026

During this essential RACmonitor webcast Michael Calahan, PA, MBA Certified Compliance Officer, will clarify the rules, dispel common misconceptions, and equip you with practical strategies to code, document, and bill high-risk split/shared, incident-to & critical care E/M services with confidence. Don’t let audit risks or revenue losses catch your organization off guard — learn exactly what federal auditors are looking for and how to ensure your documentation and reporting stand up to scrutiny.

August 26, 2025

Trending News

Prepare for the 2025 CMS IPPS Final Rule with ICD10monitor’s IPPSPalooza! Click HERE to learn more

Get 15% OFF on all educational webcasts at ICD10monitor with code JULYFOURTH24 until July 4, 2024—start learning today!

CYBER WEEK IS HERE! Don’t miss your chance to get 20% off now until Dec. 2 with code CYBER24