@mskathleenquinn @linseymarr It was delta too. Vaccines were more effective than now at reducing transmission, though not great.
@mskathleenquinn @linseymarr 这也是三角洲。疫苗在减少传播方面比现在更有效，尽管效果不是很好。
@mskathleenquinn @linseymarr It was delta too. Vaccines were more effective than now at reducing transmission, though not great.
@mskathleenquinn @linseymarr 这也是三角洲。疫苗在减少传播方面比现在更有效，尽管效果不是很好。