Israel's covid cases and deaths are just beginning to decline a bit, after vaccinating 54% of the population (30% two weeks ago), and after having been in strict lockdown since _September_. Israeli flu season usually peaks between December and February, and weather right now is perfect for fighting flu.
Meanwhile, Sweden's cases and deaths have been falling since late December, having had hardly any lockdown (or even voluntary measures) the whole time, and Sweden is freezing and dark right now.
@kalle I don't mean dark literally. I mean hours and intensity of sunlight. Shortest day of the year in Stockholm is almost half as long as shortest day in Tel Aviv.