As the mask mandate debate rages on, epidemiologists and medical specialists suggest looking to countries where citizens are perfectly happy to wear them to see how powerful the simple infection-control measure can be. Nearly two-and-a-half years into the Covid-19 pandemic, countries where mask-wearing is a cultural norm are seeing some signs of success as the persistent Omicron sub-variants spread throughout their communities. University of Otago public health professor and epidemiologist Michael Baker said underlying the widespread acceptance of masks in some counties was a sense of personal responsibility to protect others from Covid-19. "I'm looking at the countries that appear,...