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Clinical Microbiology Reviews, Jan 1995, 22-33, Vol 8, No. 1
VG Hemming, GA Prince, JR Groothuis and GR Siber
Respiratory syncytial virus (RSV) is an important community and nosocomial
respiratory pathogen for infants and young children. RSV causes especially
severe disease in the prematurely born or those with chronic
cardiopulmonary diseases. Elderly persons and those with T-cell
deficiencies, such as bone marrow transplant recipients, are also at high
risk for serious lower respiratory tract infections. To date, prevention of
RSV infections by vaccination has proven elusive and no preventive drugs
exist. Studies in animals and humans have shown that the lower respiratory
tract can be protected from RSV infection by sufficient circulating RSV
neutralizing antibody levels. Recently, an RSV hyperimmune immune globulin
(RSVIG) was developed and tested for the prevention of RSV infections or
reduction of disease severity. Passive immunization of high-risk children
with RSVIG during the respiratory disease season effected significant
reductions in RSV infections, hospitalizations, days of hospitalization,
intensive care unit admissions, days in the intensive care unit, and
ribavirin use. Studies in cotton rats and owl monkeys show that RSV
infections can also be treated with inhalation of immune globulin at doses
substantially smaller than required for parenteral treatment. Therapeutic
trials of parenteral RSVIG have been completed and are pending analysis.
The use of polyclonal, hyperimmune globulins and perhaps human monoclonal
antibodies provides an additional approach to the prevention and perhaps
the treatment of certain viral lower respiratory tract infections such as
those caused by RSV.
Copyright © 1995 by the American Society for Microbiology. All rights reserved.
Hyperimmune globulins in prevention and treatment of respiratory syncytial virus infections
Department of Pediatrics, Uniformed Services University of the Health Sciences, Bethesda, Maryland 20814.
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