@fmokren @DataDrivenMD Covid is contagious before symptoms manifest or become significant. You wouldn't know.
@fmokren@DataDrivenMD新冠病毒在症状出现或变得显著之前具有传染性。你不会知道的。
@fmokren @DataDrivenMD Covid is contagious before symptoms manifest or become significant. You wouldn't know.
@fmokren@DataDrivenMD新冠病毒在症状出现或变得显著之前具有传染性。你不会知道的。