Washington: Researchers have designed a new type of vaccine delivery that holds promise for improving the effectiveness of DNA vaccines, besides being painless.About 20 years ago, DNA coding for viral proteins was found to induce strong immune responses in rodents, but so far, tests in humans have failed to duplicate that success.MIT (Massachusetts Institute of Technology) researchers have developed this new vaccine-delivery film with the help of polymer coated vaccines, the journal Nature Materials reports.This type of vaccine delivery would also eliminate the need to inject vaccines by syringe, said Darrell Irvine, MIT professor of biological engineering and materials science and engineering, according to an MIT statement.
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