Indian scientists working on 1st ever dengue DNA vaccine This is the second dengue vaccine candidate from India.(Reuters file photo. Representative image) Updated on Sep 28, 2021 04:25 AM IST By Anonna Dutt , New Delhi The world’s first DNA vaccine was approved for use in India recently. Developed by the Ahmedabad-based Zydus Cadila, ZyCoV-D is, as the name indicates, is a vaccine against Covid-19. Now, some researchers believe the technology -- considered superior because DNA vaccines are easier to make and store, and, most importantly store an enormous amount of information -- can be used to develop a vaccine for another tropical disease, dengue, a viral infection transmitted by mosquitoes. “We know that there are four serotypes of the virus, but what we found was that there were genetic variations within the serotypes -- any sequence with over 6% difference is considered to be a different genotype. So, the team created a consensus sequence that is the same across the genotypes as we...
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