By News18,Shilpy Bisht
Copyright news18
When the coronavirus pandemic swept across India, the images were unforgettable: crowded hospitals, oxygen shortages, and families scrambling for treatment. The public conversation revolved around vaccines, masks, and lockdowns. But with Covid-19 still lingering in cycles, and seasonal illnesses like flu, viral fevers, and respiratory infections regularly sweeping across the country, scientists and health experts are exploring something new — the idea of stopping the virus right at the door: the nose.