Doctors Who Can Heal The Hepatitis B How Can Christians Brag About Miracles And Healings?

How can Christians brag about miracles and healings? - doctors who can heal the hepatitis b

How can Christians claim that God cured if Bhuddists Muslims, atheists, agnostics, etc., have similar stories of recovery (* a * miracle cure) cancer, AIDS, hepatitis, etc.
I have a friend, an agnostic. He had cancer and was told it was 6 months old. He goes to the doctor and the doctor was surprised because I was not a single cancer in his body to pursue. He now lives in 6 years. Christians explain, please. And someone feel free to express their opinion.