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astrazeneca delta :: Article Creator

COVID-19 Variants Explained: What You Need To Know About Alpha, Delta, Omicron & New Strains

One thing we know about viruses is that they are bound to evolve and SARS-CoV-2, the virus that causes COVID-19, is no exception. Since the beginning of the pandemic, we have seen a number of its variants emerging, including Alpha, Beta, Delta and Omicron.Every emerging variant is closely monitored to assess whether it is more aggressive, highly transmissible, vaccine-resistant, or capable of causing more severe illness than the original strain.





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