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Oral Vaccine

Microsphere-Entrapped Antigens May Be Viable Delivery System

Published in Vaccine Weekly, April 19th, 2000

Antigens entrapped in microspheres have potential as an oral vaccine delivery system, researchers from the United Kingdom suggested.

"Entrapment of subunit antigens in biodegradable microspheres for oral vaccination has been a major research area for over ten years during which there has been very little progress in achieving reproducible potent immunization in a reliable dosage form," said David Brayden and colleagues, Trinity College, Ireland.

"In the late 1980s and early 1990s much of the literature suggested that a wide range of PLGA-entrapped antigens could be administered orally leading to successful mucosal immunization and protection...

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