Impact of Influenza and Pneumococcal Polysaccharide Vaccination on Economic Burden from Acute Exacerbations of Chronic Obstructive Pulmonary Disease — Hebei Province, China, November 2018 to November 2020

Yan Li, Pingshu Zhang, Zhijie An, Ying Ma, Yamin Wang, Liye Wang, Yunqiu Liu, Xiaodong Yuan, Keli Li, Zundong Yin, Huaqing Wang. Impact of Influenza and Pneumococcal Polysaccharide Vaccination on Economic Burden from Acute Exacerbations of Chronic Obstructive Pulmonary Disease — Hebei Province, China, November 2018 to November 2020J. China CDC Weekly, 2023, 5(20): 452-458. DOI: 10.46234/ccdcw2023.086