Atlanta (USA). Questions about how to protect against other evolved forms of the SARS-CoV-2 virus as its delta variants account for more than 93% of total cases of COVID-19 in the US by the end of July 2021 getting up.
Here, Dr. Lily Cheng Emerglak, a pediatrician and infectious disease specialist at Morehouse School of Medicine, answers some common questions about the variant and what you can do to protect yourself.
1. What are the different types and how do they appear?
Viruses mutate over time to adapt to their environment and improve their survival. During the pandemic, SARS-CoV-2, the original coronavirus that causes COVID-19, mutated itself enough to alter both its ability to spread through populations and its ability to infect people. Is.
These new strains are called variants, variants or variants. The US Centers for Disease Control and Prevention currently classifies variants into three categories, listed in the following order:
Variant of Interest (VoI): It has characteristics that can reduce the ability of your immune system to be able to prevent infection. For example, you may have heard of VoI Eta, Iota or Kappa.
Variant of Concern (VOC): are less responsive to treatments or vaccines and more likely to survive clinical detection. They are more contagious, or communicable, and result in more severe infections. For example, alpha and delta are VOCs.
High Outcome Types (VOHC): Current diagnosis, prevention and treatment options are little effective on these. They lead to more serious infections and hospitalization. No VOHC has been identified so far. (agency input)