Vitamin treatment showed mixed results
Liu MJ, Han ZY, Wang HW, Yu CL, Xu XL, et al. [Effect and mechanism of acupoint injection on influenza A virus induced pneumonia in mice]. Zhongguo Zhen Jiu. 2022;42:1017. doi:10.13703/j.0255-2930.20210713-k0002
Vitamin C impacts respiratory mortality
Kang H, Hu H, Park SK. Serum antioxidant status and mortality from influenza and pneumonia in US adults. Public Health Nutr. 2022;25:1. doi:10.1017/S1368980022000027