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The Delta variant (B.1.617.2) was [ 3 ][ 4 ] a variant of SARS-CoV-2, the virus that causes COVID-19. It was first detected in India on 5 October 2020. The Delta variant was named on 31 May 2021 and had spread to over 179 countries by 22 November 2021. The World Health Organization (WHO) indicated in June 2021 that the Delta variant was ...
The delta variant is concerning because it's more highly transmissible, but the good news is that the COVID-19 vaccine is still highly protective against getting infected or ending up in a hospital or dying from the infection. Breakthrough infection is a rare event where someone who is fully vaccinated still ends up getting infected with COVID-19.
The Delta variant has been detected in 150 countries or more worldwide and is prevalent in most of them. Children who are too young to be vaccinated are at higher risk of contracting Delta.
There are 4 different lineages of Delta variants (Figure 3), while 12 different lineages of Delta plus variants have been recorded. The Delta variant of SARS-CoV-2 comprises nine S-protein mutations, namely T19R, G142D, L452R, D614G, T478K, D960N, P681R, and E156G, with deletions at 157 and 158 positions. Nevertheless, the RBD also includes ...
Research suggests that delta, officially known as B.1.617.2, is the most contagious of all the known variants to date, including the highly transmissible alpha variant that was first identified in ...
Delta is believed to be the most transmissible variant yet. It may also be able to partially evade the antibodies made by the immune system after a coronavirus infection or vaccination. Several ...
Delta, formally known as B.1.617.2, is believed to be the most transmissible variant yet, spreading more easily than both the original version of the virus and the Alpha variant first identified ...
The Delta variant is here. First identified in India, this more transmissible form of the novel coronavirus has spread to at least 77 countries and regions and now makes up more than 20 percent of ...
The Delta variant is fueling COVID-19 cases across the U.S., and raising questions about what this all means for the course of the pandemic. The highly infectious Delta variant was first detected in India in March, and it now accounts for more than 93 percent of sequenced coronavirus cases nationwide.
Some experts believe breakthrough infections are likelier after exposure to the Delta variant than to prior forms of the virus. Even when more recent data becomes available, however, it still is ...