https://www.dnaindia.com/world/report-covid-19-4th-wave-scare-coronavirus-now-evolving-to-attack-the-brain-china-omicron-subvariant-symptoms-india-3013722
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12/29/22 at 1:24am
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DNA India
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DNA Web Team
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A new study by scientists is challenging assumptions that viruses including Covid-19 become less dangerous as they evolve.
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