Sexually transmitted diseases (STDs) refer to a group of infectious diseases spread through human ****ual or similar ****ual behaviors. In recent years, the annual number of new cases of STDs around the world has remained high, which not only seriously harms the physical and mental health of adults, but can also lead to reduced fertility and endanger offspring, becoming the focus of global public health attention. https://www.creative-diagnosti....cs.com/ivd-materials