cnn 630am 7 20 20 — More than 600,000 dead and cases edging toward 15 million. The current global coronavirus numbers are forcing new shutdowns and sparking uncertainty for events well into 2021. In US cities hit hard by the virus, like Los Angeles and Houston, mayors are considering new stay-at-home orders despite pushback from state leaders. That’s already a reality in other cities, like Urumqi, the capital of China’s Xinjiang province. A “wartime” state has been declared there to stem a spike of coronavirus cases. The global surge has also caused Delta to tighten its policies. The carrier will now require medical screenings for passengers who can’t wear face masks due to health reasons, and will urge such passengers to avoid travel altogether.