I posted some info on the other thread, let me quote it;

H5N1 virus lasts
3 hours @ 56° C and
30 minutes @ 60° C
the meat of the infected polutry could be eaten after cooking, however you should know that the virus is stored in the animals guts. and to get
infected from poultry meat, from what I read you have to first dry the meat and sniff it, even then it is a very small possibility(they say). However
Im not planning to consume chicken breasts for some time.

possibly as you said, the virus shouldnt survive after about 5-10 minutes in 100° C. boiling water