Seasonal infection patterns are echoes of earlier pandemics. The 1918 pandemic didn’t end, it took up…

Seasonal infection patterns are echoes of earlier pandemics. The 1918 pandemic didn’t end, it took up residence and from there launched several later pandemics as well. Meanwhile in its seasonal ‘mild’ form it’s killed more people than in its pandemic phases. https://t.co/Cw21VaClN7