moving countries with severe asthma (Australia, Europe, etc)

Hi all --

I found this resource by googling "asthma community forum". I wonder if anyone here has experience with moving countries with severe asthma, and how easy it was to find care with the pre-existing condition and how the new climate affected the asthma. I apologize for the lengthy message below, I just wanted to share my story.

I've developed my asthma following a viral infection while living in the Bay Area. I've been on Xolair since it was FDA-approved (~2007), and did not have issues getting it in the USA since I was lucky to work for the UC system at the time. After moving to the UK, it was an initial struggle to get back on Xolair, b.c the UK system wanted me to have hospital stays and year worth of prednisone to show that I was worthy the treatment (the US history did not count much).

I am now looking to move again for professional reasons, as I do not want my asthma to dictate my life. Australia is on my list, but the statistics on asthma death rates shows that it's as bad/good as the US and the UK (the UK, the US, and AU turned to be worse than any european country). I realize that the asthma death rates may not be the best predictor, but it's the only parameter I've got.

https://www.worldlifeexpectancy.com/cause-of-death/asthma/by-country/

I think the warmer climate is generally better, but I am not sure about Australian fires (Sydney is the area I am considering). I currently have trigger control of the air in which I live and sleep (charcoal and HEPA filtration, 50% humidification, 100CFM, with participle counters etc). I have a self-built pressurized tent in which I sleep. Still, not sure if my rigs will be overwhelmed with 10 days of bush fires (and it is likely to get worse in the next 20-30 years).