See to me that's why software dudes shouldn't maybe talk about 100% !!! guaranteed ! inevitability ! as you're right, they're not doctors and it only leads to more fear and negativity worldwide perhaps. Re the Southern Hemisphere being colder - London today is 18c, Cape Town is 24c, Mombasa is 28c and Cairo is 31c.....so, I'm guessing it's not THAT much colder than here so I'm also guessing that's not the reason why they're having their flare up, but I wouldn't know - as I'm not a doctor either ;-)