Covid nasal spray by Oxford University and AstraZeneca not as effective as expected, study shows

"In their findings (published in eBioMedicine), the researchers reported mucosal antibody responses were seen in a minority of participants. Systemic immune responses to intranasal vaccination were also weaker compared with intramuscular vaccination," the University of Oxford said in a statement.
Source: The Economic Times - Category: Consumer Health News Source Type: news