ETS1 and non-Hodgkin lymphoma: As NHL is a multifactorial disease, we wanted to know whether the expression of genes involved in DLBCL and FL suggested by Flowers et al. was involved in cases of C. burnetii associated NHL (EXOC2, MYC, NCOA1, PTV1, CXCR5, ETS1, LPP and BCL2) [1].