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J&J Covid-19 vaccine lasts at least 8 months, protects against Delta variant, studies find
By Maggie Fox
The symptoms of the Delta variant appear to differ from traditional COVID symptoms. Here's what to look out for
By Lara J. Herrero
Europe wants to stop the Covid delta variant. But experts say it may already be too late
By Holly Ellyatt
Some Vaccinated People Are Dying of Covid-19. Here's Why Scientists Aren't Surprised.
By Jason Douglas & Stephen Fidler
As others chill, L.A. County sounds alarms over Delta variant, masks
By Rong-Gong Lin II & Luke Money
What to Know About the Delta Coronavirus Variant
By Rachel Nania
Johnson & Johnson Vaccine Protects Against Delta Variant, Company Reports (Published 2021)
By Apoorva Mandavilli
Delta Variant’s Spread Prompts Reconsideration of Mask Guidance
By Apoorva Mandavilli, Shawn Hubler & Roni Caryn Rabin