钩端螺旋体病

• 釒(metal)RADICAL
• 勾(hook; bend)PHONO-SEMANTIC

A fishing hook is a curved piece of metal bent into shape.

• 立(stand upright; erect)RADICAL
• 耑(sprout; bud)PHONETIC

Standing upright and straight from beginning to end is the meaning of the character 端.

• 疒(illness; patient in bed)RADICAL
• 丙(third heavenly stem)PHONETIC

A person lying on a sickbed crying out in pain everywhere sounds like "bing."