Covid-19 cases jumped 10% in the United States over the last week and the Delta variant could become the dominant strain. The variant is more transmissible than most other strains, but we also know that vaccines work well against it.
There is clear evidence that the vaccines work well in the real world. People who are choosing not to get it are putting their lives — and those around them — at unnecessary risk.
Preliminary data from a collection of states reveals that more than 99% of deaths over the last six months were among unvaccinated people, US Centers for Disease Control and Prevention director Dr. Rochelle Walensky said last week — without citing specifics.
We can see how well the vaccines work in the broader case and death trends by looking at one of the groups most likely to get vaccinated: older Americans. CONTINUED
Harry Enten, CNN