Hi AllMy first time on the site. I am Cassie, mother of Matthew 2yrs w/cf and Joshua 7months wo/cf. We are from Australia. It would be interesting to hear how you are advised to care for your children with cf in regards to the environmental factors - ie smokers, sick people, child care etc. Also treatments I read earlier - liquid enzimes - I have never heard of.Matthew has been really great - 1 hospital stay 16 days (no infection etc found) his main issues are his digestion. He has double DF508. Josh is a carrier.It seems common by reading the posts that people have two different genes - we have been led to believe it is fairly rare.Good health to you all.Cassie G. from oz