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  1. A more contagious variant of the coronavirus, known as delta, is spreading in the United States and around the world, causing a surge of cases in some countries and prompting several nations...

  2. Jul 8, 2021 · The Delta variant is spreading fast, especially where vaccination rates are low. A new report stresses that only a complete dose of the COVID-19 vaccine can protect against this dangerous variant...

  3. Jun 22, 2021 · First identified in India, Delta is one of several “ variants of concern ,” as designated by the C.D.C. and the World Health Organization. It has spread rapidly across the world and poses a...

  4. Oct 18, 2021 · Delta offers a tougher challenge. Early in the infection, when people are most likely to be contagious, the Delta variant seems to replicate in amounts that are perhaps 1,000 times as much as...

    • Apoorva Mandavilli
  5. Learn about the delta variant, a highly contagious version of COVID-19 that is spreading rapidly and causing more hospitalizations and deaths. Find out how the COVID-19 vaccine can still protect you and your community, and why masking and vaccination are important.

  6. Jul 14, 2021 · 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....

  7. What do we know about the Delta variant so far? How can we assess our risk? What strategies should we apply to protect ourselves whether we are in a low vaccination or high vaccination setting? WHO’s Dr Maria Van Kerkhove explains in Science in 5.