Daily Star's biggest headlines straight to your inbox!A "mystery fever" in northern India has killed 50 people, including children, as scientists struggle to find the reason why.Many of those suffering have complained of high fever, headaches, and nausea with hundreds needing hospital treatment in the state of Uttar Pradesh.None of those who died tested positive for Covid-19 so the possibility of a new "mystery fever" just as the country was recovering from a deadly second wave of coronavirus has caused alarm, reports the BBC.Medical experts in some districts believe the deaths are a result of dengue fever, a viral infection that is spread by mosquitoes and is responsible for infecting millions of people each year across the globe.Many of.
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