CDC: “Classifications and Definitions of SARS-CoV-2 Variants: Variant of Interest”, “Classifications and Definitions of SARS-CoV-2 Variants: Variant of Concern”, “Classifications and Definitions of SARS-CoV-2 Variants : high consequence variant, “” Selected features of SARS-CoV-2 variants of concern: B.1.617.2 “,” COVID data monitoring: report on global variants “,” Selected features of SARS-CoV variants of interest -2: B.1.427 “.
The Washington Post: “What you need to know about the highly contagious delta variant.”
Yale Medicine: “5 things to know about the Delta variant”.
CBS News: “Delta Plus: As the United States grapples with the Delta variant, India is sounding the alarm on a new strain of COVID that has mutated it.”
Public Health England: “SARS-CoV-2 Variants of Concern and Variants Under Investigation in England, July 9, 2021”, “Highly Effective Vaccines Against Hospitalization of Delta Variant”.
ZOE COVID Symptom Study: “What Are the Top 5 New Symptoms of COVID?” “
The Lancet: “SARS-CoV-2 Delta VOC in Scotland: demographics, risk of hospitalization and vaccine efficacy.”
Imperial College London: “Report REACT-1 round 12: Resurgence of SARS-CoV-2 infections in England associated with increased frequency of the Delta variant. “
CNN: “Pfizer says it’s time for a Covid booster; The FDA and CDC say not so fast.
NBC News: “The Delta Variant: Everything You Need To Know. “
Science: “SARS-CoV-2 immune evasion by B.1.427 / B.1.429 variant of concern.”
The New York Times: “Lambda variant of Covid: to watch, but no cause for alarm. “
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