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Popular article referring to the BA.2 variant:
Popular article: (many words, little data)
https://www.cnn.com/2022/02/17/health/ba-2-covid-severity/index.html
Preprint article referring to the BA.2 variant:
Preprint article: (At 52 pages, too many words!)
https://www.biorxiv.org/content/10.1101/2022.02.14.480335v1.full.pdf
[edited 1hr. after posting: Added preprint Abstract]
Cheers,
Tom
"It might be, from a human's perspective, a worse virus than BA.1 and might be able to transmit better and cause worse disease," says Dr. Daniel Rhoads, section head of microbiology at the Cleveland Clinic in Ohio. Rhoads reviewed the study but was not involved in the research.
The US Centers for Disease Control and Prevention is keeping close watch on BA.2, said its director, Dr. Rochelle Walensky.
"There is no evidence that the BA.2 lineage is more severe than the BA.1 lineage. CDC continues to monitor variants that are circulating both domestically and internationally," she said Friday. "We will continue to monitor emerging data on disease severity in humans and findings from papers like this conducted in laboratory settings."
Popular article: (many words, little data)
https://www.cnn.com/2022/02/17/health/ba-2-covid-severity/index.html
Preprint article referring to the BA.2 variant:
Abstract
Soon after the emergence and global spread of a new severe acute respiratory syndrome Coronavirus 2 (SARS-CoV-2) Omicron lineage, BA.1 (ref), another Omicron lineage, BA.2, has initiated outcompeting BA.1. Statistical analysis shows that the effective reproduction number of BA.2 is 1.4-fold higher than that of BA.1. Neutralisation experiments show that the vaccine-induced humoral immunity fails to function against BA.2 like BA.1, and notably, the antigenicity of BA.2 is different from BA.1. Cell culture experiments show that BA.2 is more replicative in human nasal epithelial cells and more fusogenic than BA.1. Furthermore, infection experiments using hamsters show that BA.2 is more 1,2 pathogenic than BA.1. Our multiscale investigations suggest that the risk of BA.2 for global health is potentially higher than that of BA.1.
Preprint article: (At 52 pages, too many words!)
https://www.biorxiv.org/content/10.1101/2022.02.14.480335v1.full.pdf
[edited 1hr. after posting: Added preprint Abstract]
Cheers,
Tom
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