Top news
All coverage
Here's what you need to know about the lambda Covid variant
By Holly Ellyatt
US sends surge team to southwest Missouri after Delta variant fuels rise in cases and hospitalizations
By Aya Elamroussi
Why is Delta such a worry? It's more infectious, probably causes more severe disease, and challenges our vaccines
By Michael Toole
The lambda COVID-19 variant is now spreading in Canada — here's what you need to know
By Lauren Pelley & Michelle Meiklejohn
California spread of coronavirus' Delta variant alarms officials
By Rong-Gong Lin II & Luke Money
Map: Tracking the Delta variant
By Mohammed Haddad
Covid's delta variant: What you need to know to protect yourself - The Washington Post
By Lindsey Bever, Kim Bellware & Lateshia Beachum
Is it more infectious? Is it spreading in schools? This is what we know about the Delta variant and kids
By Margie Danchin, Philip N Britton & Archana Koirala