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Viral Infections

Palivizumab is highly effective in suppressing respiratory syncytial virus in an immunosuppressed animal model


Respiratory syncytial virus (RSV) is widely recognized as a leading cause of pneumonia, with substantial mortality, in bone marrow transplant recipients. We tested the efficacy of a systemic monoclonal antibody (MAB) preparation possessing a high titer of anti-RSV neutralizing antibody, palivizumab (Synagis) for prophylaxis and therapy of RSV infection in cytoxan (CY) immunosuppressed cotton rats, a model in which the efficacy of a polyclonal anti-RSV product (Respigam) has been demonstrated. Both prophylaxis and therapy with this MAB were highly effective in reducing pulmonary viral replication. However, multiple sequential therapeutic doses of MAB were necessary to control rebound viral replication in continually suppressed animals.

Bone Marrow Transplantation (2002) 29, 117–120. doi:10.1038/sj.bmt.1703326

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This work was supported in part by Grant RO86DM.

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Ottolini, M., Curtis, S., Mathews, A. et al. Palivizumab is highly effective in suppressing respiratory syncytial virus in an immunosuppressed animal model. Bone Marrow Transplant 29, 117–120 (2002).

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