- Remained high levels of vaccine hesitancy
- New variants that may lower vaccine efficacy
- Rollout of the J&J vaccine (efficacy ~70%)
- Delayed arrival of the children vaccine
It appears that the US will likely have 600+ million doses by the summer, more than enough for every adult.
— Youyang Gu (@youyanggu) February 5, 2021
If the vaccine can effectively eliminate severe illnesses, as the article suggests, why do we need to wait until "end of 2021" to resume pre-pandemic lives?
One thing I've been noticing about responses to today's column is that many people still don't get how strong the forces behind regional divergence are, and how hard to reverse 1/ https://t.co/Ft2aH1NcQt
— Paul Krugman (@paulkrugman) November 20, 2018