Emergence, identification, and characterization of a novel Streptococcus agalactiae CPS type Ia ST7 strain (Ia-2021) causing large scale mortalities in tilapia aquaculture
Benjamin R LaFrentz, Paola Barato, William R Keleher, Amber E Johnston, Megan Raftery, Jason W Abernathy · 2026
Read Emergence, identification, and characterization of a novel Streptococcus agalactiae CPS type Ia ST7 strain (Ia-2021) causing large scale mortalities in tilapia aquaculture by Benjamin R LaFrentz, Paola Barato, William R Keleher, Amber E Johnston, Megan Raftery, Jason W Abernathy (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-13328444.txt.
Description
Benjamin LaFrentz and co-authors track a new germ strain that began killing farmed tilapia across Mexico and nearby regions in 2021. The strain is a form of a known fish germ with a fresh gene profile. The team gathered field cases, recreated the disease in lab fish, and read the germ's full gene set.
Lab challenges brought on the same signs seen on farms, from odd swimming to bleeding. Gene comparisons yielded a DNA target that singles out the new strain. Added to an existing test, it now sorts unknown samples by coat type and flags the new strain, aiding farm watch and vaccine choice.
Catalog record
| CREATOR | Benjamin R LaFrentz, Paola Barato, William R Keleher, Amber E Johnston, Megan Raftery, Jason W Abernathy |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 59 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |