THE ESSENTIAL
- 59.9% of the French population received a complete primary vaccination and a booster dose, according to Public Health France.
- On the other hand, 19.6% of French people are not vaccinated once morest Covid-19 at all.
A small drop of blood might be enough to predict a person’s risk of being reinfected with Covid-19. Scientists have indeed developed a new blood test that can assess the risk of contracting the disease once more. Their work has been published in the journal Nature Communications.
Covid-19 : quantifier les lymphocytes T
The use is quite simple: the person makes a small puncture in the finger, which allows a drop of blood to come out. The collected sample is then sent to the laboratory for analysis. The researchers then seek to quantify the immune T cells – or T lymphocytes – once morest Covid-19.
Predicting the risk of reinfection with Covid-19 in the coming months
“Many people are concerned regarding the risk of contracting Covid-19 once more, whether they have already been vaccinated or not.explained Martin Scurr, lead author of this study. Our test showed that the level of T-cell response – induced by previous vaccination or infection – was associated with a person’s risk of contracting Covid-19 once more within months of the blood test.“. In other words, by analyzing the T lymphocytes, this test makes it possible to assess the risk of reinfection in the coming months.
T cells more informative than antibody level
To verify the effectiveness of their test, the scientists conducted experiments with more than 300 volunteers in the United Kingdom at the start of 2022. Thus, they observed that the people who had the most T cells were the better protected once morest Covid-19 during the three months following the blood test, Some be their antibody levels.
Ultimately, the scientists hope that this easy-to-use test will make it possible to determine which people are most vulnerable to being infected once more by the virus and thus perhaps start treatment earlier. It might also be a tool to better assess the duration of immune responses in the population.
<!–
–>
