Characterizing the epidemiology of Mycoplasma pneumoniae infections in China in 2022–2024: a nationwide cross-sectional study of over 1.6 million cases
Characterizing the epidemiology of Mycoplasma pneumoniae infections in China in 2022–2024: a nationwide cross-sectional study of over 1.6 million cases
Blog Article
Mycoplasma pneumoniae (MP) is a leading cause of community-acquired pneumonia (CAP), accounting for 10–40% of cases in children.In China, the high prevalence of macrolide-resistant MP (MRMP) and recurrent MP epidemics place a significant burden on the healthcare system.Leveraging data from over 1.
6 million cases, this study provides a comprehensive analysis of the epidemiological characteristics of MP across China.Seasonal patterns analysis revealed three distinct transmission zones in China.Transmission Zone 1 exhibited two annual epidemic peaks, while Zones 2 and 3 showed a single annual peak of distinct timings.
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Notably, winter travel to popular tourist destinations appears to influence MP infection patterns in China.Age- and sex- specific analysis indicated male newborns aged [0–1) years face a 1.67 times higher risk of MP infection compared to females.
Conversely, females aged [23–38) years have a higher infection risk, likely due to their caregiving roles.The proportion of MRMP surged from 80.00% to 93.
02% between July 2023 and May 2024, with a median growth rate of 10.21%.
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.This rapid increase contrasts sharply with the modest 5.
3% rise observed from 2011 to 2019, and we attribute this escalation in part to the growing prevalence of the T1-3R clade strain in China.These findings have important implications for the identification of high-risk population, place, and time for more targeted efforts of prevention and treatment.Furthermore, the rapidly increased proportion of MRMP in the 2023–2024 season raises a concerning signal regarding antibiotic use.