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Study highlights the importance of getting vaccinated for flu

Study highlights the importance of getting vaccinated for flu – Nouvelle mise à jour 2023

Nous sommes un petit groupe de professionnels dentaires passionnés qui écrivons des articles pour le public depuis plus de 10 ans. Notre mission est de fournir des informations précises et à jour sur la santé bucco-dentaire afin que les gens puissent prendre des décisions éclairées concernant leurs soins dentaires.
Nous savons qu’une excellente santé bucco-dentaire est essentielle pour la santé et le bien-être en général, et nous nous engageons à aider nos lecteurs à atteindre et à maintenir des dents et des gencives saines.

An international team of researchers has demonstrated that among patients hospitalized for influenza, those who were vaccinated had less severe infections, including reducing the odds for children requiring admittance to an intensive care unit by almost half.

In addition, the researchers found that deaths among hospitalized adults, 65 or older, who had been vaccinated were 38% lower compared to those who had not been vaccinated.

“A common complaint about influenza vaccine is that they are typically 40-60% effective against infection – or the ‘what’s the point?’ complaint. So it is important to note that although everyone in this study was hospitalized, vaccinated individuals were less likely to be severely ill or die, suggesting that you are likely to have far less severe consequences if vaccinated,” said Dr. Annette Regan, UCLA Fielding School of Public Health assistant professor of epidemiology and lead author of the peer-reviewed research, published this week in the October edition of The Lancet Infectious Diseases. “This is an important point, especially in light of the upcoming influenza season coupled with ongoing COVID-19 activity, both this season and into the future.”

Globally, influenza contributes to 9.5 million hospitalizations, 81.5 million hospital days, and 145,000 deaths each year. Vaccination offers the best method of preventing influenza illness, reducing illness in the general population by 40–60%, experts say.

Specifically, The Lancet analysis found that three groups routinely targeted for influenza vaccination experiences less severe illness. Children who had received only part of their first series of influenza vaccines had 36% lower chances of being admitted to an intensive care unit (ICU), and children who had fully completed their first series of influenza vaccines had 48% lower chances of admission to ICU compared to unvaccinated children, the researchers found.

The study – “Severity of influenza illness associated with seasonal influenza vaccination among hospitalized patients in four South American countries” – is the product of an international team of researchers from the United States, Argentina, Brazil, Chile, and Paraguay, and drew on data from all four South American countries over a period of seven years. Data were obtained through the Network for the Evaluation of Vaccine Effectiveness in Latin America and the Caribbean, influenza (REVELAC-i) which is coordinated by the Pan American Health Organization (PAHO).

“Although several studies have reported drops in influenza illness following influenza vaccination, the results have focused predominantly on adults in the United States, and this study aimed to evaluate the severity of influenza illness by vaccination status in a broad range of age groups, and across multiple South American countries,” said Dr. Marta Von Horoch, a co-author who serves as coordinator of the National Immunization Program in Paraguay. “We were very pleased to work with our partners in the U.S. and across the continent, and these findings demonstrate, quite clearly, the importance of influenza vaccination for children and adults, no matter where they live.”

The study – the first-ever on this scale in South America – examined influenza-related hospitalization rates and outcomes across all four countries from 2013-19. Specifically, the analysts reviewed the outcomes for some 2,747 patients hospitalized with confirmed influenza virus infection, in three age groups – children aged 6–24 months, adults aged 18–64 years, and adults aged 65 years or older.

Given the reality that vaccination rates have fallen, in the U.S. and globally during the COVID-19 pandemic, including among children, the findings should help make clear the benefits of timely, pro-active immunization campaigns to the public, the researchers said.

With influenza season approaching this winter and influenza vaccines now available, these results highlight the importance of getting vaccinated for flu for anyone six months of age or older – as CDC recommends. It is critical that healthcare providers and the public understand the risks of missing out on vaccinations – it is so much better to prevent a serious illness than to suffer through it, for the patient and everyone in their community.”

Dr. Annette Regan, Assistant Professor of Epidemiology, UCLA Fielding School of Public Health


UCLA Fielding School of Public Health

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Nous sommes un petit groupe de passionnés qui écrivons des articles dentaires depuis quelques années. Nous croyons qu’une bonne santé bucco-dentaire est la clé d’une vie heureuse et saine. Notre objectif est de fournir des informations précises et à jour sur tous les aspects de la dentisterie afin que nos lecteurs puissent prendre des décisions éclairées concernant leur santé bucco-dentaire.
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