To determine if ongoing retinal degeneration in bbs2–/– mutants was associated with elevated inflammation, retinas from 7 mpf animals were stained with the monoclonal antibody 4C4, which is specific for zebrafish microglia (Tsarouchas et al., 2018; Mazzolini et al., 2020), and L-plastin, a pan-leukocyte marker (Herbomel et al., 1999; Le Guyader et al., 2008). The gene discussed is BBS2; the disease is retinal degeneration.