What Delta has changed in the Covid pandemic — and what it hasn’t
In some respects, the Delta variant has changed everything in the Covid-19 pandemic. In others, the same rules still apply.
Before the variant of SARS-CoV-2 began spreading rapidly in the United States, Covid-19 vaccines were drastically cutting the number of cases. They were preventing people from being infected. And vaccinated people who got infected were unlikely to infect others.
Read Original Article: What Delta has changed in the Covid pandemic — and what it hasn’t »
