The search strategy employed combinations of keywords including “viral pneumonia,” “traditional Chinese medicine,” “natural product,” “inflammation,” and “oxidative stress,” along with mechanism-related terms such as “NF-κB,” “Nrf2,” “PI3K/Akt,” “MAPK,” and “NLRP3 inflammasome” to ensure accurate and relevant retrieval. Here, NFE2L2 is linked to viral pneumonia.