按照英文報道，與疫苗沒有因果關係，與變異有直接關係

德國全國奧米克戎占比44%，而這個州占85%，受周邊荷蘭丹麥等國的影響。

Bremen's location near the Netherlands and Denmark, where Omicron has already become the dominant variant, could be one reason for the higher infection rate in the state, Zeeb said.

Omicron now accounts for more than 85% of coronavirus infections in Bremen, well above the national figure of around 44%, according to data from the RKI on Thursday.