Hi. Hope some of these papers match what you are looking for.
[1] Yang, Y., Long, J., Wang, C., Blot, W.J., Pei, Z., Shu, X., Wu, F., Rothman, N., Wu, J., Lan, Q., Cai, Q., Zheng, W., Chen, Y., & Shu, X. (2021). Prospective study of oral microbiome and gastric cancer risk among Asian, African American and European American populations. International Journal of Cancer, 150, 916 - 927.
[2] Abate, M.E., Walch, H.S., Arora, K., Vanderbilt, C.M., Fei, T., Drebin, H.M., Shimada, S., Maio, A., Kemel, Y.M., Stadler, Z.K., Schmeltz, J., Sihag, S., Ku, G.Y., Gu, P., Tang, L., Vardhana, S., Berger, M.F., Brennan, M., Schultz, N.D., & Strong, V.E. (2023). Unique Genomic Alterations and Microbial Profiles Identified in Patients With Gastric Cancer of African, European, and Asian Ancestry. Annals of Surgery, 278, 506 - 518.
[3] Smith, S.I., Fowora, M.A., & Pellicano, R. (2019). Infections with Helicobacter pylori and challenges encountered in Africa. World Journal of Gastroenterology, 25, 3183 - 3195.
[4] Setshedi, M., & Watermeyer, G. (2022). The impact of Helicobacter pylori and intestinal helminth infections on gastric adenocarcinoma and inflammatory bowel disease in Sub-Saharan Africa. Frontiers in Medicine, 9.
Thank you for your willingness to help; the articles from African settings containing profile descriptions of gastric taxa relative abundance could be more helpful for what I need. Kind regards.