@nasirfmusiqi @dcairns199 @alisonpearsonSW They had a lot of immunity, which might be similar. I guess not known whether later waves were due to waning immunity, mutations, and or behavior.
@nasirfmusiqi@dcairns199@alisonpearson他们有很多免疫力，这可能是相似的。我想不知道后来的波动是否是由于免疫力下降、突变和/或行为所致。