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8,266 SARS-CoV-2 Genomic Assemblies from Asymptomatic Carriers in Japan
Hajime Ohyanagi1, Junko S Takeuchi1, Yuichi Kawanishi1
1Center for Clinical Sciences, Japan Institute for Health Security, Tokyo, Japan.
Scientific Data
|February 24, 2026
Summary
Researchers generated over 8,000 SARS-CoV-2 genome sequences from asymptomatic individuals in Japan. This public genomic data resource aids the global fight against COVID-19 transmission.
Area of Science:
- Virology
- Genomics
- Public Health
Background:
- Asymptomatic carriers are crucial for respiratory infectious disease transmission.
- Understanding SARS-CoV-2 in asymptomatic individuals is vital for pandemic control.
- Genomic data from diverse populations aids in tracking viral evolution.
Purpose of the Study:
- To create a valuable genomic resource of SARS-CoV-2 from asymptomatic individuals.
- To support the global research community's efforts in combating COVID-19.
- To analyze and share viral genomes from a Japanese cohort.
Main Methods:
- Collection of SARS-CoV-2 positive samples from asymptomatic individuals in Japan.
- Whole-genome sequencing using Illumina COVIDSeq technology.
- Public deposition of all generated SARS-CoV-2 genome assemblies.
Main Results:
- Successfully generated 8,266 SARS-CoV-2 genome assemblies.
- All genome sequences are publicly available for research.
- The dataset provides insights into the viral landscape in asymptomatic carriers.
Conclusions:
- The study provides a significant genomic dataset for SARS-CoV-2 research.
- Publicly accessible data from asymptomatic cases is essential for disease mitigation strategies.
- This resource will aid in understanding transmission dynamics and developing targeted interventions.
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