Trudeau: Canada already in second wave of coronavirus Warning comes as Canadian Covid-19 cases climb higher, a setback that follows the country’s success in flattening the curve earlier in the pandemic Andy Blatchford POLITICO

OTTAWA — Prime Minister Justin Trudeau is warning Canadians that the second wave has arrived in many parts of the country.

Summer just ended. The weather is cooling. School is back in session — or trying to be. People are spending more time indoors. 

Massive genetic study shows coronavirus mutating and potentially evolving amid rapid U.S. spread The largest U.S. genetic study of the virus, conducted in Houston, shows one viral strain outdistancing all of its competitors, and many potentially important mutations. Washington Post

Scientists in Houston on Wednesday released a study of more than 5,000 genetic sequences of the coronavirus that reveals the virus’s continual accumulation of mutations, one of which may have made it more contagious.

US experts vow ‘no cutting corners’ as vaccine tests expand WASHINGTON (AP) — A huge international study of a COVID-19 vaccine that aims to work with just one dose is getting underway as top U.S. health officials sought Wednesday to assure a skeptical... AP NEWS

WASHINGTON (AP) — A huge international study of a COVID-19 vaccine that aims to work with just one dose is getting underway as top U.S. health officials sought Wednesday to assure a skeptical Congress and public that they can trust any shots the government ultimately approves.

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New Dashboard Tracks Coronavirus Cases In Schools Across 47 States The effort, still in its early stages, hopes to track infections and determine the effectiveness of safety measures. NPR.org

A new national effort asks K-12 schools to voluntarily — and anonymously — report their confirmed and suspected coronavirus cases, along with the safety strategies they're using.