Watch out. Markets are sliding.

The S&P is off 25 (1.3%). The Dow is off 255 (1.4%). The Nasdaq is off 73 points (1.6%)

One interesting area of weakness: Airlines, which might have something to do with Ebola fears, now that we’ve had the first Ebola case in the US.

Delta is down 3.7%. So is United. Southwest is off 2.9%.

Earlier Wednesday, two managers surveys signaled deceleration in the US manufacturing sector.

The ISM manufacturing index fell to 58.5 in September from 59.0 in August. Markit’s manufacturing PMI fell to 57.5 from 57.9 in August.

Still, any reading above 50 signals growth.

“Recent months have also seen a welcome revival in export growth, suggesting trade should also help boost the US economy in the third quarter,” Markit’s Chris Williamson said. “GDP looks set to grow by at least 3.0% in the third quarter, with good momentum being sustained as we move into the final quarter of the year.”

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