Meaning of the word "a disease known is half cured" in English

What does "a disease known is half cured" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

a disease known is half cured

US /ə dɪˈziːz noʊn ɪz hæf kjʊrd/
UK /ə dɪˈziːz nəʊn ɪz hɑːf kjʊəd/
"a disease known is half cured" picture

Idiom

identifying the cause of a problem is the first and most important step toward solving it

Example:
Once the doctor diagnosed the illness, the patient felt relieved, believing that a disease known is half cured.
We need to find the source of the leak; after all, a disease known is half cured.