Even after Delta became the dominant variant in humans, Alpha and Gamma continued to circulate in white-tailed deer, according to new research.
The Delta variant of SARS-CoV-2 is a new strain of the virus that causes COVID-19. It was first identified in India in November 2021 and has since spread to many countries around the world. The Delta variant is thought to be highly transmissible and has been associated with a large number of COVID-19 cases and hospitalizations.
Genomic sequencing has shown that the Delta variant contains several key mutations, including the E484K mutation, which is thought to reduce the effectiveness of antibodies generated by previous infections or vaccines. As a result, the Delta variant may pose a greater threat to public health and may require a more robust response, including increased vigilance in the form of mask-wearing, physical distancing, and testing.
It is important to monitor the spread of the Delta variant and to continue to take measures to prevent the spread of COVID-19, including getting vaccinated and following public health guidelines.
The Omicron variant is a strain of the SARS-CoV-2 virus that causes COVID-19. It was first identified in South Africa in November 2021 and has since spread to multiple countries. There are several different Omicron variants that have been identified, including:
- B.1.351: This was the first Omicron variant to be identified in South Africa and has been associated with increased transmissibility and the emergence of new mutations.
- B.1.617.2: Also known as the “double mutant,” this variant was first identified in India and has since spread to multiple countries. It is thought to be highly transmissible and has been associated with a large number of COVID-19 cases in India.
- B.1.617.3: This is a sublineage of B.1.617.2 and has been identified in several countries, including the United States.
- B.1.617.4: This is another sublineage of B.1.617.2 and has been identified in several countries, including the United Kingdom.
These variants and others are constantly evolving, and new variants may emerge as the pandemic continues. It’s important to monitor the spread of these variants and the impact they may have on the course of the pandemic.