Just wanted to share my experience on looking for "travel insurance" as I did just investigate:
I'm diagnosed & on Imatinib since 2 months, good response, and have a holiday booked next week, only one week canary islands - to say it upfront, I definitely go on the trip, no matter what.
My clinic consultant said that out of her experience "normal" (existing) insurances will try to avoid paying even unrelated health expenses by blaming it on the CML - so out of curiosity I inquired for Single Trip Travel Insurance - maybe it helps others if I quickly share my experience.
She recommended asking a company called insurancewith.com ...their online quote failed, and advised to call them...I did, but the operator was not able to quote me; he couldn'T say why (I only have CML but had Asthma as a child, which I probably shouldn't have mentioned) then he recommended me to ask these next two insurers:
oktotravelinsurance.co.uk their online quote turned out £158.41 for one week - made me instantly loose interest
2nd one was freespirittravelinsurance.com which quoted £169.37 - so that seems to be a standard pricing - and both does not appeal to me, nor by budget ;)
Anyway; I realize that many fellow CML'ers here are from abroad, USA and elsewhere, and I'm in the lucky position that I'm registered and insured with our (free) NHS which (still) covers me even in other EU countries (until Brexit is final of course) so please forgive me if my input on the topic of insurance is not of much value for most others....but my attitude might:
As was mentioned on another thread about holiday and advice from doctors: "doctors are always going to be ultra conservative... they have nothing to gain in telling you "sure, its fine, go"
I still think that infections/bacteria can be avoided by some preventative means, even food related dangers, simply don't eat "washed" salad which hasn't been prepared by yourself etc. common sense behaviour when travelling to foreign countries, even without increased risk. And, at home / in the own neighbourhood germs are living as well - so my point is travel of no travel it doesn't really matter in my opinion, en contraire: the positive mindset in holiday might actually help the immune system :)
As said, I will go on the trip (and others to come) - after all it's only one life, so I can as well live it :)
PS: just my opinion: NEVER give your full/clear surname on ANY insurance quotes, as they all share data at some point (even if it will be in the future) so it might be held against you at some point, or increase risk / pricing in whatever sector of quoting (Car/house/life insurance etc pp) simply use a different name / birth date !