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Article History

Received: 5 December 2024

Accepted: 1 July 2025

First Online: 1 August 2025

Declarations

:

: All methods were carried out in accordance with Data Security Law of the People’s Republic of China, World Medical Association Declaration of Helsinki and other relevant guidelines and regulations. In accordance with the requirements of Chinese law, namely the Law of the People’s Republic of China on the Prevention and Control of Infectious Diseases, TB and AIDS belong to Class B infectious diseases, and all units and individuals in the field in China have the obligation to accept the investigation and examination of infectious diseases by disease prevention and control institutions and medical institutions. During the investigation, the subjects (including illiterate subjects and their parents or legal guardians) were orally informed to upload relevant information to the national infectious disease system for infectious disease prevention and control and scientific research, so as to obtain the informed consent of all subjects (including illiterate subjects and illiterate subjects’ parents or legal guardians). Besides, this study does not involve the relevant information and data that disclose personal privacy, and does not include any data of patients’ personal information. This study has been approved by the ethics committee of the Sichuan Center for Disease Control and Prevention (reference number: SCCDCIRB-2023-008).

: Not applicable.

: The authors declare no competing interests.