There is no concept of bacterial viruses in the system of Chinese medicine, the term sterilization was accepted by Chinese medicine as a last resort, and there are old folk Chinese doctors who still do not sterilize the needles and put them in their mouths to instigate them, lubricating them with saliva to prevent them from being astringent.
The widespread use of acupuncture in years gone by was a major cause of China's hepatitis epidemic.
Also, acupuncture does not lead to weight loss! Do you recall if Chinese medicine required you to not eat this or that, and to limit the amount of food you ate?