Comparing omicron and delta: What we know about infectiousness, symptoms, severity and vaccine protection - Medical Xpress

Since omicron was detected in South Africa in late November, the SARS-CoV-2 variant has spread to more than 165 countries and is now the dominant strain.

Since omicron was detected in South Africa in late November, the SARS-CoV-2 variant has spread to more than 165 countries and is now the dominant strain. Omicron has more mutations than other strain… [+5692 chars]

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