Singh, A. K., Praharaj, M., Lombardo, K. A., Yoshida, T., Matoso, A., Baras, A. S., Zhao, L., Srikrishna, G., Huang, J., Prasad, P., Powell, J. D., Kates, M., McConkey, D., Pardoll, D. M., Bishai, W. R., Bivalacqua, T. J. (2026). Retraction Note: Re-engineered BCG overexpressing cyclic di-AMP augments trained immunity and exhibits improved efficacy against bladder cancer. Nature Communications. https://doi.org/10.1038/s41467-026-70972-5