New variant linked to rise in COVID-19 cases NBC Connecticut
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New variant linked to rise in COVID-19 cases - NBC Connecticut
Health authorities say they're closely tracking the spread of three new COVID-19 variants now spreading around the country.
Levels of COVID-19 hospitalizations and deaths for now remain far below previous peaks seen during past summer and winter waves of the virus, but have been climbing steadily for several weeks.
Public health officials have said that they're well-equipped for the latest seasonal uptick in the virus, with COVID-19 tests and forthcoming vaccines expected to work for the variants on the rise around the country.
But the appearance of a new "highly mutated" variant has raised questions among virus trackers about what the coming months could hold.
Here's the latest about what we know about the new COVID-19 variants now on the rise.
There are two that are fairly prevalent and one the highly mutated variant that is not as widespread, for now. Every two weeks, the Centers for Disease Control and Prevention publishes projections of COVID-19 variants that are dominant around the country.
The EG.5 variant is estimated to be the "dominant" strain in the U.S. because it makes up the largest share of new cases of COVID-19 compared to other variants. On Aug. 18, the CDC estimated EG.5 made up 20.6% of new infections.
Behind EG.5 unofficially nicknamed "Eris" by virus tracker T. Ryan Gregory on social media is a long list of other closely related variants, virtually all of which descended from the XBB strains that were dominant last winter.
FL.1.5.1 is the next-largest strain at 13.3% of U.S. infections, the CDC estimated. Dubbed "Fornax" by Gregory, FL.1.5.1 has nearly doubled from the week prior when it was an estimated 7.1% of circulating variants.
Both EG.5 and FL.1.5.1 are XBB variant descendants that share a mutation known as F456L, which appears to be helping them spread more than other virus siblings.
Authorities have also been tracking a new highly mutated strain of the virus called BA.2.86. That strain was nicknamed "Pirola" by user @JPWeiland on social media. BA.2.86's prevalence remains too small to show up on the CDC estimates and is currently being aggregated with its distant ancestor BA.2.
While only a small handful of cases have been spotted around the world, including one in Michigan, the strain's large number of mutations at some key parts of the virus has accelerated investigations into the risk that BA.2.86 might pose.
COVID symptoms appear to be largely the same. Since EG.5 and FL.1.5.1 emerged, officials have generally downplayed claims of dramatic changes in symptoms caused by these closely related new variants, compared to their close Omicron variant relatives from earlier in the pandemic.
There has been no evidence of increased disease severity from the new EG.5 strain, the WHO reported on August 9.
Experts say other changes in the population, like immunity from prior infections and vaccination, also muddies attempts to compare whether new variants are to blame for shifts in reported symptoms from the virus.
In recent months, COVID-19 symptoms appear to have remained largely the same as they have for the past year, with cold and flu-like signs cough, headache, muscle aches, runny nose and fatigue reported most often.
As for BA.2.86, officials say it is too early to say whether that strain will cause more severe illness because of its worrying sum of mutations.
The sole case in Michigan was "an older adult with mild symptoms, and [the patient] has not been hospitalized," Chelsea Wuth, a spokesperson for the state Department of Health and Human Services, said in a statement to CBS News.
In Denmark, health officials said their three BA.2.86 variant cases did not have "symptoms other than those normally seen" from COVID-19.
The U.K. said its BA.2.86 case was tested at a London hospital, but that it was currently not possible "to assess comparative severity by variant" based on their data.
They seem to work, although that may change if one of the strains becomes more prevalent. The Food and Drug Administration has so far not flagged any new issues with the EG.5 and FL.1.5.1 variants, from its ongoing joint effort with the National Institutes of Health to study the performance of COVID-19 tests with new strains. One positive development Modeling suggests the variant will not evade tests better than other previous Omicron strains.
"Now we have the genome mapped and all that information. We also have the epitopes mapped for all antigen-based tests. We can do computational analytics to see whether or not we think there's going to be any impact on test performance," Todd Merchak, co-lead of the NIH's RADx Tech initiative at the National Institute of Biomedical Imaging and Bioengineering.
Merchak said the initiative's "well-oiled machine" has been preparing for manual experiments to validate whether home COVID tests are less sensitive to EG.5 and other variants, in case the FDA decides to call for home COVID tests to be rechecked for the new strains.
"We use the same protocols, so we have comparisons across every test that's on the market, every test that's in development, we can compare them against each other so we have data for everything," said Merchak.
Experts say it's possible BA.2.86's wide changes might change the performance of some tests, if it grows more prevalent.
U.K.health authorities said it was "unreliable to attempt to predict the combined effect of the large number of mutations" from BA.2.86, but acknowledged there's enough information "to expect significant antigenic change."
They're expected to be effective. Vaccine makers say they expect the upcoming rollout of new COVID-19 vaccine and booster shots next month will work for EG.5 and FL.1.5.1 as well, since they are closely related to the XBB.1.5 variant targeted by the revised shots recommended by the FDA and WHOearlier this year.
"We try to select the antigen that will provide the maximum breadth of immunity so that the protection to people is as wide as possible, anticipating that the virus may evolve between the time when the recommendation is issued and the time when the vaccine is produced," the WHO's Dr. Sylvie Briand told reporters on August 9.
On Aug. 17, Moderna said preliminary results from its human clinical trial data suggest its updated vaccines will trigger a "significant boost in neutralizing antibodies against EG.5 and FL.1.5.1 variants." Pfizer says data from a recent study in mice suggests its vaccine will be effective as well.
The CDC expects, based on evidence and input from the FDA advisory committee, that "the fall updated vaccines with a monovalent XBB.1.5 composition will best protect public health," Kathleen Conley, a CDC spokesperson, said in a statement August 18.
It is unclear whether BA.2.86 could upend those plans. Experts say the strain's mutations might be enough to render the upcoming shots "a fairly poor match" if it circulates more widely.
As virologist Paul Duprex told CBS News chief medical correspondent Dr. Jonathan LaPook on "60 Minutes" in March of 2021, changes in the virus' spike protein can allow it to evade antibodies and more easily infect someone. Duprex said the only way to stop a virus from mutating is to stop its spread.
"If we block its transmission, if we wear a mask, if we get vaccinated, if we do social distancing, so, there's a practical thing we can do," he said. "But physically, biologically, is there something we can do? Is there a magic bullet we can shoot at it that stops it making mutations? no."
But for this season, the FDA does not see a need to change up the COVID vaccine recipe, an official said. Another meeting of its outside vaccine advisers on the topic isn't planned until preparation begins for next year's vaccination campaign.
"Barring the emergence of a markedly more virulent viral variant causing COVID-19, the FDA anticipates revisiting the composition of the vaccine during the first half of 2024," the FDA official said in an Aug. 16 email.
CBS News reporter covering public health and the pandemic.
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A familiar pandemic-era safety measure is making a comeback as new COVID-19 variants surface and cases of the disease flare in some parts of the U.S.: Mask mandates.
The number of COVID-19 cases has climbed forseveral weeks, with health authorities saying they're tracking the spread of three new variants. As a result, some businesses and other institutions are again requiring people to wear masks, which have proved an effective tool for slowing the spread of the virus.
Like vaccine requirements, cities and states have widely dropped mask mandates as COVID rates have dropped since peaking in 2022. In February, for example, New York state dropped a requirement that face coverings be worn even in health care settings, in line with guidance from the Centers for Disease Control and Prevention, after most other local businesses had already nixed mandates voluntarily.
Morris Brown College in Atlanta this week announced that the small liberal arts school is reinstating its mask mandate for two weeks, citing COVID cases among students. As of Tuesday, the school required that all students and staff members wear masks, according to a statement from college president Dr. Kevin James. The college is also imposing restrictions on event sizes, including parties, and is resuming efforts to trace infections.
"There will be no parties or large student events on campus for the next two weeks," the school said. The college is also asking students who test positive for COVID-19 to isolate for at least five days and to attend class virtually while in isolation.
The latest CDC data shows that COVID-19 hospitalizations are up 30% across Georgia, driven by the spread of new variants.
In California, with cases of the virus rising in Los Angeles, movie studio Lionsgate is reinstating an in-office mask mandate at its Santa Monica headquarters, Deadline first reported. Lionsgate said a number of employees had recently tested positive for COVID-19, according to the report.
Lionsgate is also reviving other safety measures. All employees are required to perform a self-screening for COVID symptoms daily before reporting to the office, according to Deadline. Employees with symptoms, or those who have recently returned from international travel, are asked to stay home and notify the company's response manager, the publication reported, citing an internal company email.
Lionsgate could not immediately be reached for comment.
As of Aug. 12, 330 Los Angeles County residents were hospitalized with COVID-19, according to the city'sdepartment of public health.
In Northern California, health care company Kaiser Permanente has reintroduced a mask mandate at its Santa Rosa hospital and medical offices "in response to this latest increase in COVID-19 cases," a spokesperson said in an email to CBS MoneyWatch. It applies to physicians, staff, patients, members and visitors.
"Respiratory protection and the use of masking is an important component in keeping our health care workers, physicians and patients safe," the company added in a statement.
Some experts fear it could be hard to convince Americans to don masks again even if COVID cases continue to rise. Dr. Danielle Ompad, an epidemiologist at the NYU School of Global Public Health, said "it's a bit like putting the genie back in the bottle." Still, she has personally started wearing a mask again recently in crowded places, where the risk of exposure is greater.
"If I were with people who aren't public health-trained, I would wear a mask, particularly in crowded situations, because I really don't have time for COVID. Mask mandates are challenging because they make people really bent out of shape out of proportion to the ask."
Dr. Carole Lieberman, a board-certified psychiatrist who is also trained in public health, called the return of mask mandates "triggering" for some people.
"These new warnings about rising COVID-19 rates are affecting people in different ways. For some, it's triggering renewed fears of getting sick and dying," she told CBS MoneyWatch. "For others, it's fear of being told what to do from masks to vaccines to lockdowns. We now know the impact of some of these mandates like kids missing out on school, loss of businesses, jobs and money so we are as fearful of this as we are of COVID-19."
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A 50-year-old and immunocompromised resident receives a second booster shot of the coronavirus disease (COVID-19) vaccine in Waterford, Michigan, U.S., April 8, 2022. REUTERS/Emily Elconin/File Photo Acquire Licensing Rights
WASHINGTON, Aug 20 (Reuters) - The Biden administration plans to urge all Americans to get a booster shot for the coronavirus this autumn to counter a new wave of infections, a White House official said on Sunday.
The official said that while the Centers for Disease Control and Prevention are reporting an increase in infections and hospital admissions from the virus, overall levels remain low.
On Thursday, Moderna (MRNA.O) said initial data showed its updated COVID-19 vaccine is effective against the "Eris" and "Fornax" subvariants in humans.
Moderna and other COVID-19 vaccine makers Novavax (NVAX.O), Pfizer (PFE.N) and German partner BioNTech SE (22UAy.DE) have created versions of their shots aimed at the XBB.1.5 subvariant.
Pending approval from health regulators in the United States and Europe, the companies expect the updated shots to be available in the coming weeks for the autumn vaccination season.
"We will be encouraging all Americans to get those boosters in addition to flu shots and RSV shots," the official said, referring to the Respiratory Syncytial Virus.
Reporting by Steve Holland; Editing by Lisa Shumaker
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