সিনিয়র শিক্ষক
১৫ জানুয়ারি, ২০২২ ০৮:২২ অপরাহ্ণ
Common colds can provide protection against Covid: Study , Observer Online Desk
High levels of T-cells from common cold coronaviruses can provide
protection against COVID-19, an Imperial College London study published on
Monday has found, which could inform approaches for second-generation vaccines.
Immunity against COVID-19 is a complex picture, and while there is evidence of
waning antibody levels six months after vaccination, T-cells are also believed
to play a vital role in providing protection.
The study, which began in September 2020, looked at levels of cross-reactive
T-cells generated by previous common colds in 52 household contacts of positive
COVID-19 cases shortly after exposure, to see if they went on to develop
infection, Reuters reports.