相关研究好像不多. 这篇刚出来, 基本上没有影响.
The association of prior paracetamol intake with outcome of very old intensive care patients with COVID-19: results from an international prospective multicentre trial
et al., BMC Geriatrics, doi:10.1186/s12877-022-03709-w, NCT04321265 (history)