That made me wonder whether they detected any benefit from other non-mRNA vaccines, as some of them are adjuvanted, e.g., I believe flu vaccines for 65+ are often adjuvanted. But there was no evidence of this in the data base examined in the Nature article:
Likewise, patients who received a pneumonia or influenza vaccine within 100 days of initiating ICI (Extended Data Fig. 2b–e) and those with resectable stage III tumours (Extended Data Fig. 2f,g) experienced no improvement in survival.