restrictions...the more conservative one was imposed. I could give you my take, but it's better that you read it yourself to understand why.
As far as having a surge in COVID cases in spite of an 82%+ vaccination rate...the mRNA vaccines were terrific against the Alpha version (95% effective..but not 100%), however, with the Delta variant it's down (arguably) to the 60-70% range...fortunately, what hasn't changed much is that both vaccines keep people out of hospitals and ICUs...in the case of Singapore, they are being ultra cautious with their very limited City State population...i.e. hospitalizing almost anyone with COVID related difficulties...so they don't want to take a chance that the also very small HC facilities get overrun. BTW, read the parts of the article where they note that very few people are actually in need of ICU services...also, remember that anyone infected with COVID-19 can transmit the virus to others...often when they have no symptoms...and there are still Singapore citizens who aren't yet vaccinated and have no protections...ergo, masks, social distancing, etc.
The article also goes to some length explaining that there could be a benefit to Singapore because they have such a high vaccination rate...the surge in 'breakthrough' cases means those people will get the positive effects of natural immune responses, in addition to what the vaccines provide, thus strengthening their resistance to further infection and allowing a true return to normal living.
Had Singapore not been so highly vaccinated, the results of the surge would be devastating.
Once again...vaccines are the way to go...they keep people alive and out of ICUs...if anyone has a better plan, they need to come forward...now...I'm not holding my breath on that.