no they haven't and their unconstitutional now they were also used in the spanish flu of 2018 but that was also unconstitutional

Really no countries have had a succesful lockdown now small island nation s that closed the borders have but can't really do that in USA, not after it was already brought here from italy and china

Now though they are just closing businesses, some businesses, ones that aren't in good with the ruling class, walmart gets to stay open. This is only done to hurt small businesses. Some big chain restaurants like appebies are also being hurt but they weren't favored, the rich don't like to go there.

You can tell this is fake because of the politicians who order businesses closed also go out to eat and party, they just read their lines they are provided for but know it's not really needed. Even if you catch covid it's gone in a week.