The claim: 2014 study shows that flu nasal spray causes strep A
A Dec. 5, 2022, Facebook post (direct link, archived link) shows a screenshot of a 2014 research study titled "Live attenuated influenza vaccine enhances colonization of Streptococcus pneumoniae and Staphylococcus aureus in mice."
"It's the flu nasal spray that's causing strep A," reads the post's caption. "For those that needed a little extra help."
The post generated over 80 shares in less than two months.
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Our rating: False
The authors of the study in question told USA TODAY their work in no way proves a link between flu nasal sprays and Strep A. Their study did not even examine Strep A.
Claim misinterprets 2014 study
The 2014 study referenced in the post investigated whether FluMist, a live attenuated influenza vaccine, facilitated bacterial growth and increased the susceptibility to invasive bacterial disease in mice.
Contrary to the post’s claim, the study did not investigate Group A Streptococcus, also called Strep A, which causes strep throat, skin infections and acute rheumatic fever, according to Dr. Jon Mccullers, a pediatrics professor at the University of Tennessee who co-authored the study.
Rather, the study investigated Streptococcus pneumoniae, a bacteria that causes pneumonia and meningitis, and Staphylococcus aureus, a bacteria that causes sepsis, endocarditis and pneumonia, according to the Iowa...
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