NDLI: The immune evasion ability of Delta variant is comparable to that of Beta variant in South Africa

Content Provider	Springer Nature : BioMed Central
Author	He, Daihai Chen, Boqiang Zhao, Shi Stone, Lewi
Abstract	Background The high immune evasion ability of SARS-COV-2 Omicron variant surprised the world and appears to be far stronger than any previous variant. Previous to Omicron it has been difficult to assess and compare immune evasion ability of different variants, including the Beta and Delta variants, because of the relatively small numbers of reinfections and because of the problems in correctly identifying reinfections in the population. This has led to different claims appearing in the literature. Thus we find claims of both high and low immune evasion for the Beta variant. Some findings have suggested that the Beta variant has a higher immune evasion ability than the Delta variant in South Africa, and others that it has a lower ability. Method In this brief report, we re-analyse a unique dataset of variant-specific reinfection data and a simple model to correct for the infection attack rates of different variants. Result We find that a model with the Delta variant having an equal or higher immune evasion ability than Beta variant is compatible with the data. Conclusion We conclude that the immune evasion ability of Beta variant is not stronger than Delta variant, and indeed, the immune evasion abilities of both variants are weak in South Africa.
Related Links	https://bmcpublichealth.biomedcentral.com/counter/pdf/10.1186/s12889-023-15431-2.pdf
Ending Page	4
Page Count	4
Starting Page	1
File Format	HTM / HTML
ISSN	14712458
DOI	10.1186/s12889-023-15431-2
Journal	BMC Public Health
Issue Number	1
Volume Number	23
Language	English
Publisher	BioMed Central
Publisher Date	2023-03-17
Access Restriction	Open
Subject Keyword	Public Health Medicine Epidemiology Biostatistics Vaccine Environmental Health Immune evasion Beta variant Delta variant Reinfection South Africa Medicine/Public Health
Content Type	Text
Resource Type	Article
Subject	Public Health, Environmental and Occupational Health
Journal Impact Factor	3.5/2023
5-Year Journal Impact Factor	3.9/2023

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

SARS-CoV-2 reinfection with Omicron variant in Shaanxi Province, China: December 2022 to February 2023

COVID19 vaccine intentions in South Africa: health communication strategy to address vaccine hesitancy

Overcrowding and health in two impoverished suburbs of Johannesburg, South Africa

Willingness to use HIV prevention methods among vaccine efficacy trial participants in Soweto, South Africa: discretion is important

The impact of COVID-19 on routine child immunisation in South Africa

Is laboratory screening prior to antiretroviral treatment useful in Johannesburg, South Africa? Baseline findings of a clinical trial

Factors that contribute to women’s reluctance to undergo cervical cancer screening in clinics of Limpopo Province, South Africa

Assessing the geographical distribution of comorbidity among commercially insured individuals in South Africa

Socio-economic inequalities in the multiple dimensions of access to healthcare: the case of South Africa

The immune evasion ability of Delta variant is comparable to that of Beta variant in South Africa

Similar Documents

SARS-CoV-2 reinfection with Omicron variant in Shaanxi Province, China: December 2022 to February 2023

COVID19 vaccine intentions in South Africa: health communication strategy to address vaccine hesitancy

Overcrowding and health in two impoverished suburbs of Johannesburg, South Africa

Willingness to use HIV prevention methods among vaccine efficacy trial participants in Soweto, South Africa: discretion is important

The impact of COVID-19 on routine child immunisation in South Africa

Is laboratory screening prior to antiretroviral treatment useful in Johannesburg, South Africa? Baseline findings of a clinical trial

Factors that contribute to women’s reluctance to undergo cervical cancer screening in clinics of Limpopo Province, South Africa

Assessing the geographical distribution of comorbidity among commercially insured individuals in South Africa

Socio-economic inequalities in the multiple dimensions of access to healthcare: the case of South Africa

The immune evasion ability of Delta variant is comparable to that of Beta variant in South Africa