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World
Delta Variant Spreads Worldwide
A new, highly contagious strain of COVID-19 called the Delta variant is present in more than 80 countries and is spreading worldwide. Here in the United States, healthcare workers and government officials are warning the public of outbreaks in regions with low vaccination rates. First detected in the Indian state of Maharashtra in October 2020, the variant has spread rapidly since India’s devastating second wave began back in March. Currently the United Kingdom has the highest number of cases of the Delta variant, more than 10,000, and 90% of all new cases. Not much is known about the new variant, but it may possibly cause more severe illness. Although vaccines provide protection against it, they are less effective than they are against other less transmissible variants. While the Pfizer-BioNTech vaccine is 96% effective after two doses for other COVID strains, that number drops to 90% against the Delta variant.
This map depicts reported Delta variant cases worldwide by country, as of June 23. Click on the map to learn more.
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