The relative abundances of Acidovorax, Klebsiella, and Anaerococcus in squamous cell carcinoma were elevated, especially in patients with tumour protein p53 (TP53) mutations, where Acidovorax was more abundant.37 In adenocarcinomas, Acinetobacter, Brevundimonas, and Propionibacterium were more abundant.38 Furthermore, Apopa et al. discovered that the phylum Cyanobacteria was more enriched in adenocarcinoma.39 Additionally, it has been found that the genera Veillonella and Megasphaera have a high area under the curve for predicting lung cancer.40 Here, TP53 is linked to adenocarcinoma.