It’s all in the feed. Oh, and lowering the vibrios in your prawn tanks…

https://aquaculturemag.com/2022/02/07/passive-immunization-with-recombinant-antibody-vlrb-piravp-pirbvp-enriched-feeds-against-vibrio-parahaemolyticus-infection-in-litopenaeus-vannamei-shrimp/