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Breakthrough Infections

All articles tagged with #breakthrough infections

health1 year ago

"Impact of COVID-19 Breakthrough Infections on Immune Cells"

New research from La Jolla Institute for Immunology reveals that COVID-19 breakthrough infections enhance the immune system's ability to fight future SARS-CoV-2 infections. These infections improve T cells' capacity to recognize and target multiple virus variants, including omicron and delta, and boost B cells to produce cross-reactive antibodies. The study found no evidence of T cell exhaustion, suggesting that repeated vaccinations and infections strengthen immune responses, potentially guiding future vaccine development.

via Medical Xpress|
#breakthrough-infections#covid-19#health
health2 years ago

Emerging BA.2.86 COVID Variant Sparks Concern as Cases Rise

The Centers for Disease Control and Prevention (CDC) has released a risk assessment on the BA.2.86 variant of COVID-19, which may be more likely to cause breakthrough infections in individuals who have previously had COVID-19 or received COVID-19 vaccines. The variant, a subvariant of Omicron, has been detected in nine cases across Denmark, South Africa, the U.S., the U.K., and Israel. BA.2.86 has more than 35 amino acid changes to its spike protein, potentially reducing the effectiveness of vaccines and previous infections. However, it is still unclear how infectious and severe the variant is due to the limited number of cases. Existing treatments are expected to be effective against BA.2.86.

via Health.com|
#ba286-variant#breakthrough-infections#cdc
health2 years ago

BA.2.86 Variant: A Growing Concern for Breakthrough Infections

The BA.2.86 COVID-19 subvariant, recently detected in several countries, including the U.S., may have a higher ability to cause breakthrough infections in individuals who have previously had the virus or been vaccinated, according to a risk assessment by the CDC. It is unclear if this strain causes more severe illness. The BA.2.86 subvariant has more mutations compared to other strains descended from the Omicron subvariant, raising concerns about its potential to evade existing immunity from vaccines and previous infections. However, the real-world impact of this variant on immunity is still unknown. The World Health Organization has designated BA.2.86 as a "variant under monitoring."

via The Hill|
#ba286-subvariant#breakthrough-infections#cdc