Fig. 3From: Application of metagenomic next-generation sequencing in the diagnosis of Bartonella neuroretinitis: a case report and literature reviewThe results of the IFA test for Bartonella henselae showed moderate apple-green fluorescence at a titre of 1:64 (A) and no fluorescence at a titre of 1:256 (B). The positive control and negative control are shown in (C) and (D), respectivelyBack to article page