Sun Zhou, Xu Ke, Huo Liangliang, Zhang Xingliang, Wang Yi, Gong Yonghui, Chen Bingbing
Hangzhou Center for Disease Control and Prevention (Hangzhou Health Supervision Institution), Hangzhou, China.
The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China.
Front Public Health. 2025 Feb 6;13:1512841. doi: 10.3389/fpubh.2025.1512841. eCollection 2025.
This study aimed to investigate the epidemiological characteristics and risk factors associated with human psittacosis in Hangzhou city, eastern China.
The human psittacosis data from 2021 to 2024 were obtained from the China information system for diseases control and prevention infectious disease surveillance system. Epidemiological investigations were carried out on the patients' past medical history, clinical manifestations, chest CT results and treatment status. A community-based 1:3 matched case-control study was performed to investigate the risk factors associated with infection.
During the study period, 137 confirmed cases of human psittacosis were identified through laboratory tests, of which 24 (17.52%) were classified as critical cases, including one fatality. The epidemic curve indicated that the majority of cases occurred between October and March. Among the cases, 48.91% were female, and the median age was 63 years. There were more female cases among those aged <60 years, while there were more male cases among those aged ≥60 years. Multivariate logistic regression analysis revealed that the presence of bird habitats within 500 m of the living area [odds ratio (OR) = 3.81, 95% confidence interval (CI) = 2.19-6.61], parrots kept (OR = 2.95, 95%CI = 1.10-7.89) and poultry kept (OR = 2.15, 95%CI = 1.02-4.53) remained significantly associated with the risk of disease infection.
Human psittacosis has become a notable public health concern in Hangzhou city, with an increase in psittacosis cases reported in recent years. Exposure to poultry, birds, or environments contaminated with was associated with infection. Urgent actions to reduce psittacosis cases and mitigate the impact of outbreaks are needed, including strengthening surveillance, raising public awareness, and promoting collaboration between the agricultural and health sectors.
本研究旨在调查中国东部杭州市人感染鹦鹉热的流行病学特征及相关危险因素。
从中国疾病预防控制信息系统传染病监测系统获取2021年至2024年的人感染鹦鹉热数据。对患者的既往病史、临床表现、胸部CT结果及治疗情况进行流行病学调查。开展一项基于社区的1:3匹配病例对照研究，以调查与感染相关的危险因素。
在研究期间，通过实验室检测确诊137例人感染鹦鹉热病例，其中24例（17.52%）被列为重症病例，包括1例死亡病例。流行曲线表明，大多数病例发生在10月至次年3月。病例中48.91%为女性，中位年龄为63岁。年龄<60岁的病例中女性较多，而年龄≥60岁的病例中男性较多。多因素logistic回归分析显示，居住区域500米内存在鸟类栖息地[比值比（OR）=3.81，95%置信区间（CI）=2.19 - 6.61]、饲养鹦鹉（OR = 2.95，95%CI = 1.10 - 7.89）和饲养家禽（OR = 2.15，95%CI = 1.02 - 4.53）仍与疾病感染风险显著相关。
人感染鹦鹉热已成为杭州市一个值得关注的公共卫生问题，近年来报告的鹦鹉热病例有所增加。接触家禽、鸟类或受污染的环境与感染有关。需要采取紧急行动减少鹦鹉热病例并减轻疫情影响，包括加强监测、提高公众意识以及促进农业和卫生部门之间的合作。
