Shares of NanoViricides Inc. jumped 41.8% in premarket trading on Thursday after the company said it began developing a monkeypox treatment. There are currently no approved or authorized therapies for monkeypox, though the Food and Drug Administration said last month that it’s allowing prescriptions of the antiviral Tpoxx through a compassionate-use pathway. Tpoxx is made by Siga Technologies Inc. . NanoViricides’ stock has slid 33.8% so far this year, while the broader S&P 500 is down 12.8%.
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