No Las Vegas cannot end a pandemic only a vaccine can, they have laid out strict protocols and made sure that it will be followed because they cannot afford a big rise in infection, or they no choice but to close all establishment again.
I don't hear about that, but that will be a good sample for one country where still check people who are going to enter their country because they need to make sure that there is no new case of Covid-19. But many countries still fight against the virus, and yes, Las Vegas is still fighting too, so the government needs to have checked and make sure that the casino is safe for the people.
It is a difficult job for the government because they don't miss something that can cause bad things for their city. The strict protocols will be the only way to prevent the virus spreads to the other people so they can allow the casino to reopen.