US business activity falls for the first time since 2013 amid the coronavirus outbreak

**

· *The IHS Markit purchasing managers' index fell 3.7 points to 49.6 on Friday. The index measures composite output at factories and service providers.*
· *Any reading below 50 signals a contraction. Friday's PMI marks the first contraction in US business activity since 2013. *
· *The deterioration in PMI "was in part...