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Added a post  to  , sarscov2

India's drug regulator has approved the world's first DNA vaccine against Covid-19 for emergency use.

The three-dose ZyCoV-D vaccine prevented symptomatic disease in 66% of those vaccinated, according to an interim study quoted by the vaccine maker Cadila Healthcare.

The firm plans to make up to 120 million doses of India's second home-grown vaccine every year.

Previous DNA vaccines have worked well in animals but not humans.

India has so far given more than 570 million doses of three previously approved vaccines - Covishield, Covaxin and Sputnik V.

About 13% of adults have been fully vaccinated and 47% have received at least one shot since the beginning of the drive in January.

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Added a post  to  , sarscov2

One of the Big Questions about SARS-CoV-2, the virus that causes COVID-19, has for a while been about its origins. Most viruses that cause disease in humans have long, fascinating origin stories, with jumps from animal to animal until they finally make it into people and start killing them.

But COVID-19, goes the theory, must be lab-grown - either from an intentional lab leak or a mistake of epic proportions - there's simply too much circumstantial evidence to ignore! This idea doesn't really make sense. There's no special reason to believe that COVID-19 must have been grown in a lab.

Sure, there's political reasons that we might think the Chinese government is untrustworthy, but that's a slim basis for a theory. As humans, when we are given two possibilities, we assume that they are somewhat equivalent in likelihood, so when you hear "lab leak or natural origin" it's not unreasonable to assume that those two things are about as likely as one another, even though that makes no sense whatsoever.

We know from decades of evidence that new diseases jump from animals to humans all the time. There are literally dozens of cases in the last few decades alone where an entirely new disease has transferred from a non-human host to people.

This has even happened twice in recent memory with coronaviruses similar to SARS-CoV-2, which gives you some idea of just how unsurprising it is when a novel pathogen of likely animal origin is identified.

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