https://www.masslive.com/coronavirus/2022/01/covid-hospitalizations-in-massachusetts-near-last-years-peak-as-percentage-of-breakthrough-cases-rises.html The state reported 45,029 new breakthrough cases of the virus in the last seven-day period ending Jan. 1. During that same period, the state reported a total of 79,908 new cases. The new breakthrough cases represent about 56% of the total number of new cases reported in that period, an uptick from the 44% the previous week. Hussain said clinical data says two vaccine doses provide 35% effectiveness against omicron, which is less effective than they were against earlier variants. However, that third booster dose means 75% effectiveness. 就只能防重症了？
The state reported 45,029 new breakthrough cases of the virus in the last seven-day period ending Jan. 1. During that same period, the state reported a total of 79,908 new cases. The new breakthrough cases represent about 56% of the total number of new cases reported in that period, an uptick from the 44% the previous week.
Hussain said clinical data says two vaccine doses provide 35% effectiveness against omicron, which is less effective than they were against earlier variants. However, that third booster dose means 75% effectiveness.
就只能防重症了？