Sometimes, some situations are just not representative and we don't always know the reason. For example, mortality might have been higher because of inadequate

Sometimes, some situations are just not representative and we don't always know the reason. For example, mortality might have been higher because of inadequate care at the highest of the pandemic. Or there might be some genes that are prevalent or absent in the population that are specific to the region that make the virus behave differently than for the rest of the world.