The ASC present in the spleen, LN, and BM of mice after 3 months of Influenza virus-PR8 strain infection also showed a high expression of CD39 in comparison with splenic non-ASC B cells (CD19+CD138neg) (Figure 2B, middle panel), indicating that, regardless of the phase of infection, all ASC expressed significantly higher levels of CD39, as previously shown for ASC present in T. cruzi-infected mice. Here, CD19 is linked to infection.