What to know
CDC is tracking a SARS-CoV-2 variant called BA.2.86 and working to better understand its potential impact on public health. This update follows CDC's previous BA.2.86 update on September 8, 2023.
Summary
What CDC knows
It is unclear how easily BA.2.86 spreads compared to other circulating variants. At this time, BA.2.86 does not appear to be rapidly increasing or driving increases in infections or hospitalizations in the United States.
What CDC is doing
CDC will continue monitoring BA.2.86 and other circulating variants of the virus that causes COVID-19. Moving forward, we will share updates on BA.2.86 when significant additional information becomes available.
What's New?
- During the Advisory Committee on Immunization Practices meeting on September 12, 2023, manufacturers of the 2023-2024 COVID-19 vaccines presented laboratory evidence demonstrating that their vaccines are expected to provide protection against the virus that causes COVID-19, including the BA.2.86 variant.
- At this time, BA.2.86 does not appear to be rapidly increasing or driving increases in infections or hospitalizations in the United States.
- There are likely low levels of community transmission of BA.2.86 occurring within several countries, including parts of the United States. We are concluding this because some of the people infected with BA.2.86 do not have known links to other infected individuals and did not recently travel to an area with known cases of illness from BA.2.86.
- It is unclear how easily BA.2.86 spreads compared to other circulating variants. An investigation of a recent outbreak in a long-term care facility in the United Kingdom showed that, like other variants, transmission can occur in congregate settings.
- CDC will continue monitoring BA.2.86 and other circulating variants of the virus that causes COVID-19.
The remainder of CDC's assessment remains unchanged from the September 8 update.