Question

성병은 성적인 접촉을 통해서 감염되게 됩니다 The verb 통하다 often occurs with -아/어서 attached. Resulting 통해(서) generally translates as 'through' in its various meanings.-아/어서 can be used as a sentence ending. In such usage, -아/어서 cannot be shortened by dropping -서. To form the polite speech style ending, -요 should be added.Expressions with -아/어서 may communicate ambiguous messages due to overlapped meanings. For example, sometimes the meaning may be interpreted both as a sequence of two actions and as an action performed by the means of another action. In such cases, the context can be used to clarify the meaning.

Accepted Answer

Sexually transmitted diseases (STDs) are infections acquired by sexual contact

Front	성병은 성적인 접촉을 통해서 감염되게 됩니다
Back	Sexually transmitted diseases (STDs) are infections acquired by sexual contact
Notes	The verb 통하다 often occurs with -아/어서 attached. Resulting 통해(서) generally translates as 'through' in its various meanings. -아/어서 can be used as a sentence ending. In such usage, -아/어서 cannot be shortened by dropping -서. To form the polite speech style ending, -요 should be added. Expressions with -아/어서 may communicate ambiguous messages due to overlapped meanings. For example, sometimes the meaning may be interpreted both as a sequence of two actions and as an action performed by the means of another action. In such cases, the context can be used to clarify the meaning.

아/어서 Meanings 성병은 성적인 접촉을 통해서 감염되게 됩니다