Does anyone know what the negative numbers in refers to? Is the negative number the positive cases in the southern hemisphere? Does anyone else notice the correlation between an increase in annual flu shots and flu cases?
Does anyone know what the negative numbers in [this chart](https://files.catbox.moe/bkgzfz.jpg) refers to? Is the negative number the positive cases in the southern hemisphere? Does anyone else notice the correlation between an increase in annual flu shots and flu cases?
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