WHO says young people are driving the spread of coronavirus

What they're saying: "The epidemic is changing," Takeshi Kasai, the WHO’s Western Pacific regional director, said. "Many are unaware they’re infected — with very mild symptoms or none at all. This can result in them unknowingly passing on the virus to others."

• "This increases the risk of spillovers to the most vulnerable: the elderly, the sick, people in long-term care, people who live in densely populated urban areas and under-served rural areas. We must redouble efforts to stop the virus from moving into vulnerable communities."

The big picture: About half of the clusters in a study of outbreaks in Japan were traced back to people aged 20–39 at karaoke bars, offices and restaurants — and 41% of them did not have symptoms at the time.

• Some young people can and do get very sick from the coronavirus. Some have developed blood clots in their lungs and inflammation of the heart, lungs and brain.

• Michigan State University, University of Notre Dame and University of North Carolina at Chapel Hill all announced this week they will be holding online-only classes for the fall term.
• Notre Dame and UNC-Chapel Hill both reported a spike in COVID-19 cases within their student bodies.

Go deeper: More young people are getting — and spreading — the coronavirus