New COVID-19 vaccines formulated for better protection against the currently circulating variants have been approved by the US Food and Drug Administration.
The COVID vaccines available this fall have been updated to better match the currently circulating COVID strains, said William Schaffner, MD, professor of medicine in the Division of Infectious Diseases at Vanderbilt University, Nashville, Tennessee, in an interview.
“The Pfizer and Moderna vaccines — both mRNA vaccines — target the KP.2 variant, while the Novavax vaccine targets the JN.1 variant, which is a predecessor to KP.2,” said Schaffner, who also serves as a spokesperson for the National Foundation for Infectious Diseases. “The Novavax vaccine is a protein adjuvant vaccine made in a more traditional fashion and may appeal to those who remain hesitant about receiving an mRNA vaccine,” he explained. However, all three vaccines are designed to protect against severe COVID illness and reduce the likelihood of hospitalization, he said.
Who Needs It?
“The CDC’s Advisory Committee on Immunization Practices (ACIP) continues to recommend that everyone in the United States who is age 6 months and older receive the updated COVID vaccine this fall, along with influenza vaccine,” Schaffner said.
“This was not a surprise because COVID will produce a sizable winter outbreak,” he predicted. Although older people and those who have chronic medical conditions such as heart or lung disease, diabetes, or other immunocompromising conditions suffer the most serious impact of COVID, he said. “The virus can strike anyone, even the young and healthy.” The risk for long COVID persists as well, he pointed out.
The ACIP recommendation is endorsed by the American Academy of Pediatrics and other professional organizations, Shaffner said.
A frequently asked question is whether the COVID and flu vaccines can be given at the same time, and the answer is yes, according to a statement from the Centers for Disease Control and Prevention (CDC).
“The optimal time to be vaccinated is late September and anytime during October in order to get the benefit of protection through the winter,” Schaffner said.
As with earlier versions of the COVID-19 vaccine, side effects vary from person to person. Reported side effects of the updated vaccine are similar to those seen with earlier versions and may include injection site pain, redness and swelling, fatigue, headache, muscle pain, chills, nausea, and fever, but most of these are short-lived, according to the CDC.
Clinical Guidance
The CDC’s clinical guidance for COVID-19 vaccination outlines more specific guidance for vaccination based on age, vaccination history, and immunocompromised status and will be updated as needed.
A notable difference in the latest guidance is the recommendation of only one shot for adults aged 65 years and older who are NOT moderately or severely immunocompromised. For those who are moderately or severely immunocompromised, the CDC recommends two to three doses of the same brand of vaccine.
Schaffner strongly encouraged clinicians to recommend the COVID-19 vaccination for all eligible patients. “COVID is a nasty virus that can cause serious disease in anyone,” and protection from previous vaccination or prior infection has likely waned, he said.
Schaffner also encouraged healthcare professionals and their families to lead by example. “We should all be vaccinated and let our patients know that we are vaccinated and that we want all our patents to be protected,” he said.
The updated COVID-19 vaccination recommendations have become much simpler for clinicians and patients, with a single messenger RNA (mRNA) vaccine required for anyone older than 5 years, said David J. Cennimo, MD, associate professor of medicine & pediatrics in the Division of Infectious Disease at Rutgers New Jersey Medical School, Newark, New Jersey, in an interview.
“The recommendations are a bit more complex for children
One-Time Dosing
Although the updated mRNA vaccine is currently recommended as a one-time dose, Cennimo said he can envision a scenario later in the season when a second dose is recommended for the elderly and those at high risk for severe illness. Cennimo said that he strongly agrees with the recommendations that everyone aged 6 months and older receive an updated COVID-19 vaccine. Older age remains the prime risk factor, but anyone can become infected, he said.
Predicting a prime time to get vaccinated is tricky because no one knows when the expected rise in winter cases will occur, said Cennimo.
“We know from years of flu vaccine data that some number of people who delay the vaccine will never return and will miss protection,” he said. Therefore, delaying vaccination is not recommended. Cennimo plans to follow his habit of getting vaccinated in early October. “I anticipate the maximal effectiveness of the vaccine will carry me through the winter,” he said.
Data support the safety and effectiveness for both flu and COVID vaccines if they are given together, and some research on earlier versions of COVID vaccines suggested that receiving flu and COVID vaccines together might increase the antibody response against COVID, but similar studies of the updated version have not been done, Cennimo said.
Clinicians may have to overcome the barrier of COVID fatigue to encourage vaccination, Cennimo said. Many people say they “want it to be over,” he said, but SARS-CoV-2, established as a viral respiratory infection, shows no signs of disappearing. In addition, new data continue to show higher mortality associated with COVID-19 than with influenza, he said.
“We need to explain to our patients that COVID-19 is still here and is still dangerous. The yearly influenza vaccination campaigns should have established and normalized the idea of an updated vaccine targeted for the season’s predicated strains is expected,” he emphasized. “We now have years of safety data behind these vaccines, and we to make a strong recommendation for this protection,” he said.
COVID-19 vaccines are covered by private insurance, as well as by Medicare and Medicaid, according to the CDC. Vaccination for uninsured children is covered through the Vaccines for Children Program.
Source link : https://www.medscape.com/viewarticle/new-covid-19-vaccines-targeting-kp-2-variant-available-2024a1000gd2?src=rss
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Publish date : 2024-09-10 10:49:15
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