Stay-at-home orders and mandatory testing notices have been issued to several Shanghai residents as authorities race to trace contacts linked to a COVID-positive woman whose visit to the city's Disney resort prompted its temporary lockdown. The Shanghai Disney Resort on Monday became the latest major venue to shut its gates due to China's strict zero-COVID policy, locking in all visitors and only allowing them to leave, hours later, after they had tested negative for the virus. Several families said on Tuesday they had been told by officials they must stay at home if they had visited the attraction since Thursday…