The US intelligence community is investigating the origins of the novel coronavirus pandemic. CNN's Sanjay Gupta reports.
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Unlocking the mysteries of the exact origins of SARS-CoV-2, the virus that causes Covid-19 and launched a global pandemic in March 2020, has become one of the most burning questions in the scientific community. But the effort, like so many other coronavirus-related issues, has become hotly contested, fraught with implications for international relations and, in the United States at least, laced with conspiracy theories and politically motivated posturing.