Five things to know about the Delta variant as we head into the fall

1. Delta spreads faster. The Delta variant of SARS-CoV-2 emerged from India in late 2020 and has spread across the globe like wildfire by out-competing other variants worldwide. How did it do this? While the exact mechanism is still being studied, this variant tweaked its outer spike protein to better bind to and infect our cells than it ever has before. People infected with Delta have more than…