Since January 1st many states have lifted or changed their mask restrictions and guidance, we are going to look at those changes state by state and see if cases increased and decreased after mask mandates ended.
Since January 1st 2022:
- California lifted their mask mandate
- Nevada lifted their mask mandate
- New Mexico lifted their mask mandate
- New York lifted their mask mandate
- Rhode Island lifted their mask mandate
- Delaware lifted their mask mandate
- Virginia banned mask mandates


So if masks are so good at stopping the spread of COVID we would expect these states to see a spike in spread and COVID cases right? Let’s see if the data shows that is the case. Call data is from the CDC.
Periods during mask mandates are highlighted in yellow
Periods when mask mandates are lifted are highlighted in green
California
February 16th California Ended their mask mandate, cases have continued to decrease after they increased during the mask mandate.

Nevada
February 10th California Ended their mask mandate, cases have continued to decrease after they increased during the mask mandate.

New Mexico
February 17th New Mexico Ended their mask mandate, cases have continued to decrease after they increased during the mask mandate.

New York
February 10th New York Ended their mask mandate, cases have continued to decrease after they increased during the mask mandate.

Rhode Island
February 9th Rhode Island Ended their mask mandate, cases have continued to decrease after they increased during the mask mandate.

Delaware
February 11th Delaware Ended their mask mandate, cases have continued to decrease after they increased during the mask mandate.

Virginia
February 11th Virginia’s new governor banned school mask mandate, cases have continued to decrease after they increased during mask mandates.

So cases always increase during mask mandates and always decrease after mask mandates are lifted.
Does this mean mask mandates work?
Ohio University Should Immediately Make Masks Optional.