1. Middle-aged and elderly         Specifically, people over the age of 40 or 50. In a sense, cancer is a "geriatric disease." It mainly occurs in middle-aged and elderly people, especially the elderly. Although a bit extreme, it makes sense: "As long as If you live long e...

High-risk objects         1. Those who have multiple sexual partners;         2. Those who have premature sex;         3. Persons infected with human papillomavirus (HPV);         4. People with weakened immune f...

High-risk objects         1. Patients with past breast duct or lobular dysplasia or lobular carcinoma in situ (LCIS).         2. Received chest radiotherapy before the age of 30.         3. There is an obvious genetic predisposition...

High-risk objects         1. Asymptomatic people over 45 years old;         2. Two weeks of anorectal symptoms over the age of 40 (refers to any of the following symptoms lasting more than two weeks: changes in stool habits (constipation, diarrhea, etc.); c...

        Adeno-associated virus (AAV) belongs to the Parvoviridae family. Members of this family are small, non-enveloped, and icosahedral viruses. The diameter of the virus particle is between 20 and 26 nm, and it contains a linear single-stranded DNA genome with a size...