SIGNIFICANT DEVELOPMENTS

• Read the latest Philadelphia-area coronavirus updates here. 

• Scores of presumed positive cases of the virus have been reported in Pennsylvania and New Jersey — more than a third of those in the Philadelphia region — with the case count climbing daily.

• Gov. Tom Wolf has ordered all schools in Pennsylvania to close for two weeks, beginning Monday. Schools in Delaware and in some New Jersey locations are also set to shut down, including a month-long closure in Burlington County.

• President Donald Trump declared a national emergency Friday.

• Shops including state liquor stores and the King of Prussia are remaining open in Montgomery County, even after Wolf asked non-essential businesses to shut down.

• Major Philadelphia cultural institutions are closing for at least two weeks, utilities are suspending shut-offs, and courts are halting jury trials.

• What are the symptoms of coronavirus and what should you do if you think you have it? Read answers to frequently asked questions here.