@fmokren @DataDrivenMD There is no new science supporting the change in masking metrics, it was entirely arbitrary and political.
@fmokren@DataDrivenMD没有新的科学支持掩蔽指标的改变，这完全是武断和政治性的。
@fmokren @DataDrivenMD There is no new science supporting the change in masking metrics, it was entirely arbitrary and political.
@fmokren@DataDrivenMD没有新的科学支持掩蔽指标的改变，这完全是武断和政治性的。