Update on the omicron sub-variants BA.4 and BA.5.
Rev Med Virol
; 33(1): e2391, 2023 01.
Article
em En
| MEDLINE
| ID: mdl-36017597
ABSTRACT
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.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
COVID-19
Tipo de estudo:
Guideline
Limite:
Humans
País/Região como assunto:
Africa
/
Asia
/
Europa
Idioma:
En
Revista:
Rev Med Virol
Assunto da revista:
VIROLOGIA
Ano de publicação:
2023
Tipo de documento:
Article
País de afiliação:
Indonésia