@CivisRomanvsSum @mattyglesias A day or two before symptoms is likely close to peak contagion, if not peak.
@在症状出现前一两天，CivisRomanvsSum@mattyglesias可能接近传染高峰，如果不是高峰的话。
@CivisRomanvsSum @mattyglesias A day or two before symptoms is likely close to peak contagion, if not peak.
@在症状出现前一两天，CivisRomanvsSum@mattyglesias可能接近传染高峰，如果不是高峰的话。