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COVID-19 Delta variant

virus variant
Also known as: Delta variant, SARS-CoV-2 B.1.617.2

Quick Summary

The Delta variant is a highly transmissible genetic variant of the SARS-CoV-2 coronavirus. Coronaviruses are a group of viruses known for causing respiratory and gastrointestinal infections in humans and animals. They are characterized by a crown-like appearance under a microscope due to distinctive spikes on their surface.12

While coronaviruses can cause illnesses ranging from the common cold to severe diseases like COVID-19, the Delta variant became widespread in mid-2021 and was noted for its increased transmissibility compared to earlier forms of the virus. This led to a rise in infections, including among vaccinated individuals, and caused significant illness, especially in those unvaccinated.12

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