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AstraZeneca’s nasal Covid vaccine not as effective as expected: Study

by Press Trust of India

London: AstraZeneca’s intranasally-administered vaccine against COVID-19 did not perform as expected in a small study published on Tuesday, suggesting there are likely to be challenges in making nasal sprays a reliable option. The findings from a Phase 1 clinical trial, published in the journal eBioMedicine, show mucosal antibody responses were generated in a minority of participants. […]

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