TY - RPRT TI - Limited horizontal transmission of an obligate, free-living bacterial symbiont AU - Sullivan, L. AU - Kelly, S. E. AU - Hunter, M. S. PY - 2026 DO - 10.64898/2026.06.25.734684 UR - https://www.biorxiv.org/content/10.64898/2026.06.25.734684v1 ID - 10.64898/2026.06.25.734684 ER -