Coronavirus has now spread to more than 100 countries, representing two-thirds of the world’s population . In Pittsburgh, large events are being canceled; college classes are moving online; and everyone’s taking extra long to wash their hands. Helping explain the headlines this week from the WESA newsroom: Sarah Boden , health and science reporter Ariel Worthy , government and accountability reporter Katie Blackley , digital producer currently covering coronavirus All of the positive cases are currently in the eastern part of the state in Bucks, Delaware, Monroe, Montgomery, Northampton, Philadelphia, Pike and Wayne counties. No cases have been confirmed in Allegheny County. Carnegie Mellon University , the University of Pittsburgh , Duquesne University , Chatham University , Carlow University , and Robert Morris University announced they are switching all classes to online instruction as the schools prepare for a possible spread of COVID-19 . Mayor Bill Peduto said Pittsburgh will
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