COVID-19 has panicked the world for almost a year, yet it remains untouched. We highly worry about the possible second wave of SARS-CoV-2. Several studies have been done in view of the virus since the start of the pandemic. Recently, an English study claimed that the high level of the T-cells would protect the patients well against the coronavirus.
We know the T-cells, most important for cell-mediated immunity, arise as a result of pathogens surviving intracellularly. It can provide a long term immune response to an individual.
The Oxford Immunotec and Public Health England (PHE) has done a study on almost 3000 people. They identified that people with high T-cell responses had not suffered from symptomatic COVID-19. Also, nearly 20 patients develop an infection following a low T-cell response. As a result, they concluded that elevated T-cells might confer more protection to the individuals.
They too said that the T-cell response was poor when age advances. That proves why old people are at high risk of infection. So serological testing to detect antibodies is not an adequate way of identifying low-risk and high-risk people in the population.
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