Live Flu Vaccines Increase Infectious Bacteria Counts 100-Fold in Mice

 'If presumably safer "attenuated" flu vaccines are supposed to protect against influenza and its sometimes deadly complications, then why do vaccinated mice have up to 100-fold higher levels of flu-associated pathogenic bacteria than non-vaccinated mice? 

A concerning new study published in mBio, an open access journal of the American Society of Microbiology, titled, "Live Attenuated Influenza Vaccine Enhances Colonization of Streptococcus pneumoniae and Staphylococcus aureus in Mice," reveals that live attenuated influenza vaccines (LAIVs) lead to the rapid and sustained overgrowth of pathogenic bacteria in the upper respiratory tract of mice at colonization densities up to 100-fold higher than non-vaccinated mice.'


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