Product features and selling points: Identify bacterial and viral infections, guide targeted medication, avoid immune function decline, toxic side effects, and increased drug resistance caused by antibiotic abuse. Rapid detection results are accurate, and home monitoring of trace blood collection can be used as a self inspection product for home use. The operation is simple, easy, and convenient, avoiding the tedious steps and waiting time of hospital blood tests, and avoiding the risk of cross infection. The total effective rate of the product is 98.5%.