2回接種者 感染入院率0.00４％ 感染死亡率0.001％

ワクチン2回接種した人でもデルタ株に感染することはありますが、それで重症化する率は0.004％です。ワクチンは有効で、必要です。#あめしる https://t.co/d549NICZ52 pic.twitter.com/oqn4p2hW7r

— 町山智浩 (@TomoMachi) August 5, 2021

 About 99.999% of fully vaccinated Americans have not had a deadly Covid-19 breakthrough case, CDC data shows

By Deidre McPhillips and Christina Maxouris, CNN

Updated 1515 GMT (2315 HKT) August 2, 2021

The CDC reported 6,587 Covid-19 breakthrough cases as of July 26, including 6,239 hospitalizations and 1,263 deaths. At that time, more than 163 million people in the United States were fully vaccinated against Covid-19.

Divide those severe breakthrough cases by the total fully vaccinated population for the result: less than 0.004% of fully vaccinated people had a breakthrough case that led to hospitalization and less than 0.001% of fully vaccinated people died from a breakthrough Covid-19 case.

About half of states report data on Covid-19 breakthrough cases, and in each of those states, less than 1% of fully vaccinated people had a breakthrough infection, ranging from 0.01% in Connecticut to 0.9% in Oklahoma.

The KFF analysis also found that more than 90% of cases -- and more than 95% of hospitalizations and deaths -- have been among unvaccinated people. In most states, more than 98% of cases were among the unvaccinated.