SOLVED. Adult Dystopian: World in the future where communicating/ speaking with teenagers makes adults sick & a dad goes looking for his daughter. [s]

[Lucia]

Can't find this book in any way, I am getting mad! It should be recent, I must have read it in the last 5-6 years, if I am correct. I remember that in the future something about communication/speaking, especially with teenagers, start making people sick.
There is a family with a daughter, which is deeply impacted by this fact and cannot stand the situation, and her mother is very sick. Some organization is collecting those kids for some experimentation and it seems to me that the father goes looking for his daughter. I also remember that there is some hidden cabin in the woods where the daughter's parents used to go to be alone, far from the sickness coming from their daughter's speaking, and they aslo have a radio where some priest deliver speeches about religion and stuff. Thank you!

[Kris]

Lucia, is this book for teens and/or adults?

[Becca]

The Flame Alphabet by Ben Marcus

[Lucia]

Becca wrote: "The Flame Alphabet by Ben Marcus"
This is it!! Thank you very much!