Analysis on the epidemiological characteristics of severe and fatal cases of influenza in Chongqing from 2017 to 2020

XIONG Yu, QI Li, LI Qin, LI Baisong, WANG Ju

Journal of Tropical Diseases and Parasitology . 2023, (5): 273 -277,286 . DOI: 10.3969/j.issn.1672-2302.2023.05.007