Update on the omicron sub-variants BA.4 and BA.5
© 2022 John Wiley & Sons Ltd..
Several nations have recently begun to relax their public health protocols, particularly regarding the use of face masks when engaging in outdoor activities. This is because there has been a general trend towards fewer cases of coronavirus disease 2019 (COVID-19). However, new Omicron sub-variants (designated BA.4 and BA.5) have recently emerged. These two subvariants are thought to be the cause of an increase in COVID-19 cases in South Africa, the United States, and Europe. They have also begun to spread throughout Asia. They evolved from the Omicron lineage with characteristics that make them even more contagious and which allow them to circumvent immunity from a previous infection or vaccination. This article reviews a number of scientific considerations about these new variants, including their apparently reduced clinical severity.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:33 |
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| Enthalten in: |
Reviews in medical virology - 33(2023), 1 vom: 07. Jan., Seite e2391 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Tallei, Trina Ekawati [VerfasserIn] |
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| Links: |
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| Themen: |
BA.4 and BA.5 |
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| Anmerkungen: |
Date Completed 18.01.2023 Date Revised 27.01.2023 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1002/rmv.2391 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a Several nations have recently begun to relax their public health protocols, particularly regarding the use of face masks when engaging in outdoor activities. This is because there has been a general trend towards fewer cases of coronavirus disease 2019 (COVID-19). However, new Omicron sub-variants (designated BA.4 and BA.5) have recently emerged. These two subvariants are thought to be the cause of an increase in COVID-19 cases in South Africa, the United States, and Europe. They have also begun to spread throughout Asia. They evolved from the Omicron lineage with characteristics that make them even more contagious and which allow them to circumvent immunity from a previous infection or vaccination. This article reviews a number of scientific considerations about these new variants, including their apparently reduced clinical severity | ||
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