Little is known about the immune responses to influenza and other vaccines in children and adolescents with autoimmune conditions, both in terms of immunogenicity as well as the potential for triggering or worsening of immune/autoimmune pathways. Patients with SLE often must take two or more immunosuppressive medications to control their illness. Thus, it is critically important to study vaccine safety and immunogenicity within the pediatric SLE population rather than extrapolate the limited data available from adult clinical studies. Newly diagnosed, untreated patients will be too sick to include in this study. After that, patients are on some immunosuppressive regimen for an extended period of time.