Environmental models for primary influenza peaks.

<p>* p<0.05,</p>**<p>p<0.01,</p>***<p>p<0.001.</p>a<p>high latitudes are regions poleward of 25°N/S.</p>b<p>middle latitudes are regions between 12.5°N/S and 25°N/S.</p>c<p>low latitudes are regions equatorward of 12.5°N/S.</p><p>Same as <a href="http://www.plospathogens.org/article/info:doi/10.1371/journal.ppat.1003194#ppat-1003194-t002" target="_blank">Table 1</a> but these are the results for primary influenza peaks only.