How to vectorize fine hand drawing stipling in Illustrator

Hello,

I am new to Adobe Illustrator. I currently work as a technical illustrator. Most of the time, we do things by hand and minimally edit illustrations. However, lately, there has been a need for fully vectorized drawings so that drawings can be edited digitally more extensively. I tried applying image trace, but then all fine stippling and other features disappeared. Is there any other way to process or vectorize with image trace? Adding a sample for a better idea. 

Thanks for your help in advance.