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This twelvemonth ’s flu gibe take down the chance of being hospitalized for flu by 35 % among gamey - risk groups , data point issue by the Centers for Disease Control and Prevention ( CDC ) suggests .
The new data , published Oct. 3 in the CDC’sMorbidity and Mortality Weekly Report(MMWR ) , was pull from five South American countries .
Data from South America hints that’s this year’s flu shot should lower high-risk groups' chance of hospitalization.
The Southern Hemisphere’sfluseason typically runs between April and September , while the Northern Hemisphere ’s run from about October to May . Because of this alternating timing , the Northern Hemisphere looks to Southern Hemisphere data to see which strains of grippe virus are circle , to plan the pattern of flu shots for the approaching season , and to determine how well those vaccines will in all likelihood work .
In the new MMWR , researchers looked at the influenza shot ’s effectiveness in Argentina , Brazil , Chile , Paraguay and Uruguay . The report focuses onpeople at high risk of dangerous flu infections , include young children , older adults and people with shape such as chronic lung disease , liver disorder , heart disease or immune - system problems .
Related : Flu shots have changed this year — here ’s why
Between mid - March and mid - July , these five countries cover that more than 11,700 people in these groups were hospitalized with severe respiratory illnesses . Of these , about 3,850 test positive for the flu , with the Brobdingnagian majority testing confirming for an influenza A virus . ( Influenza A and flu B are the two broad groups of flu virus that go around seasonally , and in the work , two subtypes of influenza A stood out as dominant : H3N2 , follow by H1N1 . )
The remaining 7,850 or so people in the study prove disconfirming for both flu andCOVID-19 , and they acted as a point of comparison for the analytic thinking . About 23 % of these patients had been vaccinated for the flu , compare with only 18 % of the group that terminate up hospitalized for the viral infection .
mash the numbers , the researchers discover that the vaccine likely lowered the risk of grippe hospitalization by 34.5 % . Breaking it down further , the shot depress the risk of infection of hospitalization by nearly 59 % among adults with aesculapian experimental condition , 39 % for young children and 31 % for one-time adults .
" While only one in five [ severe keen respiratory infection ] patients had receive the 2024 flu vaccine , those who were immunise were at significantly lower risk for hospital care from any influenza virus infection , " the report ’s authors concluded . These information indicate the flu crack was " effective in preventing around one third of influenza - related hospitalizations among groups prioritise for vaccination . "
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vogue in the Southern Hemisphere ’s flu time of year do n’t always accurately forebode what will happen in the Northern Hemisphere . However , take on the same grippe computer virus strains pass around in the upcoming month , " health authorities might anticipate similar levels of aegis from the 2024 - 25 vaccine , " the source wrote .
With a few elision , the CDC recommends thateveryone 6 months and olderget the annual flu vaccine . extra measures , such as even handwashing , can help reduce the ranch of grippe . For those who do captivate the influenza , stick antiviral treatment , such as Tamiflu , as before long as possible can importantly trim down the risk of influenza - connect complications .
This article is for informational purposes only and is not meant to volunteer aesculapian advice .
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