TLR9 and Burkitt lymphoma: The latter results prompted us to assess, since HEK293, HEK293T, NB324K and Hela cells do not express TLR-9 [50], [51], whether the Epstein-Barr Virus (EBV)-transformed Burkitt lymphoma B cells Namalwa, containing indeed a functional TLR-9 pathway [52], [53] produce and release IFNs upon MVMp or H-1PV infections performed at ∼80 PFUs/cell.