Good Day Instructors,

The coronavirus I believe is a sort of punishment of the world, karma. But what I would like to know is wether the people he come into contact with it are actually destined to get it? Is this strictly a personal karma thing? And how about the people who get it but don't die? This is karma of having a good and strong body? Why aren't kids really affected?
And finally why is it weaker in hotter places, does that mean it's not the karma of hotter climates?

Thank you in advance.