Dow, Nasdaq suffer big hits on Friday, but one strategist sees silver lining in spike in U.S.#coronoavirus cases. https://t.co/2y76YGVvJ9 @MarketWatch @GettyImages #StockMarket $AMZN $CNNE $CLGX $NKE $BIG $SPX https://t.co/OiixfGjiX7