Tuesday 6 October 2020

COVID-19 and the immune system


Researchers from the US and China have found that COVID-19 can destroy T cells, a type of lymphocyte that plays a key role in the body’s immune system in a similar way to HIV, writes Annie Lennon.

T lymphocytes, also known as T cells, are key for identifying and eliminating pathogens in the body. They work by finding a cell infected by a pathogen, in this case the virus behind COVID-19, poking a hole in its membrane, and injecting it with toxic chemicals. These toxic chemicals then kill both the virus and the cell.

Now, a team of researchers from Shanghai and New York found that a unique structure in the virus’ spike protein fuses the virus and T cell together when they come into contact. This allows the virus to enter the T cell and essentially take over its behaviour, switching off its normal pathogen-fighting functions.


This finding comes after a clinical report released by the Chinese People’s Liberation Army’s Institute of Immunology in February stating that T cell number could significantly drop in patients with COVID-19. This was especially the case for those who were elderly or requiring intensive care treatment. They then correlated lower counts of T cells with a higher mortality risk.

See: https://www.labroots.com/trending/immunology/17341/covid-19-attack-immune-systems-hiv

Posted by Dr. Tim Sandle, Pharmaceutical Microbiology Resources (http://www.pharmamicroresources.com/)


  1. Hi there, I read your blogs on a regular basis. Your humoristic style is witty, keep it up! Thank You for Providing Such a Unique and valuable information, If you are looking for the best covid ready hospitals in mogappair

    covid ready hospitals in mogappair

    Critical Care Hospital in Chennai

  2. That very day, I heard there had been a flare-up in the Lombardy area, sixteen affirmed cases! However, the vast majority figured it very well may be contained. There was no chance that the Corona Virus would arrive at the Piedmont district, I thought.tester aan huis


Pharmaceutical Microbiology Resources

Special offers