After mice ate a low-fat diet, their flu vaccinations were more effective
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Switching obese mice to a lower-fat diet before flu vaccination, but not afterwards, improves their ability to fight the virus. This suggests the flu shot may be more effective in people with obesity if they lose weight or eat a different diet beforehand.
Even with immunisation, people with obesity are nearly twice as likely to get the flu than those without it. They are also more vulnerable to severe cases of the illness. But why obesity seems to…
