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Two immunologists say an intranasal Covid vaccine can elicit an immune response at the site of infection – the respiratory tract. Intranasal vaccination, which is administered through the nose, is also needle-free, meaning that more people may be willing to get vaccinated. Ultimately, using both intramuscular and intranasal Covid vaccines may be effective in combating Covid-19. Out of the 108 Covid-19 vaccines that are currently undergoing clinical trials, only eight are delivered intranasally (through the nose) – the rest are mainly given intramuscularly (into the muscle).  Considering SARS-CoV-2, the respiratory virus that causes Covid-19, predominantly enters the nasal passage first (this is why testing for the virus involves nasal swabs), a nasal spray vaccine could be beneficial in the continued fight against Covid, say two immunologists from the University of Alabama at Birmingham (UAB). 

United statesUnited kingdomSangita reddyDfran lundTroy randalApollo hospitals groupDrug administrationUniversity of alabama at birminghamJoint managing directorஒன்றுபட்டது மாநிலங்களில்ஒன்றுபட்டது கிஂக்டம்சங்கிதா சிவப்புஃப்ர்யாந் லண்ட்அப்பல்லோ மருத்துவமனைகள் குழுபல்கலைக்கழகம் ஆஃப் அலபாமா இல் பர்மிங்காம்கூட்டு நிர்வகித்தல் இயக்குனர்