Singapore scientists develop blood test kit to detect immunity against COVID-19 in 10 minutes

The test kit detects COVID-19 immunity based on the antibodies detected in the blood sample, the scientists said. This is different from antigen rapid test kits, which look for the presence of viral proteins produced during COVID-19 infection. 

Based on the antibodies detected in the test, this can inform a person about how cautious they should be about potential infection before a booster, and when a booster should be taken.

“It paves the way for personalised vaccination strategies, where people are only given vaccinations and booster shots when necessary, depending on their variance in antibody levels and immune response,” the researchers said.

As of Tuesday, 93 per cent of Singapore’s population has completed the full vaccination regimen. About 80 per cent of the total population has received a booster shot.

Further development of the test kit is underway to meet necessary regulatory approvals and manufacturing standards for public use, said SMART and NTU.

The team at SMART that worked on the test kit has set up a start-up named Thrixen, which is developing the test into a commercially ready product.

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