Have you heard of a thing called "mutation" Latin, THAT is what they're more worried about rather than how many old people die of THIS particular strain of this particualr virus, so far they've gotten lucky that THIS virus, whilst able to travel fast isn't THAT deadly, but that fact could change in a heartbeat and the travelling fast along with a mutated strain that IS a lot more deadly ( think Spainish flu etc) IS something that should give concern, hence the need to try and stop this virus in it's tracks if possible, which so far they are failing to do and they know it.