CD40LG and myeloid sarcoma: We found that MS patients with higher titers after two-years of treatment had higher likelihood of progression and relapses (Figure 2); and furthermore, we have found an association between the increase of the anti-HHV-6A/B IgG and IgM titers (Figure 3) with the upcoming relapses (however, as IgM antibodies to HHV-6 from Panbio can cross react with a number of other viral antigens such as CMV and EBV, the serology of these viruses should be also analyzed).