HSPA1B and infection: Heat shock protein family A (Hsp70) member 1B (HSPA1B) is one of three protein-encoding genes belonging to the HSP70 family and is involved in the human immune response after infection with Epstein–Barr virus, Legionella, and influenza A (Sistonen et al.,, 1994; Soncin et al., 1997; Kiang and Tsokos, 1998).