Why coronavirus vaccines need to prompt T cells to work
Memories of coronavirusThe focus on T cell responses could also shed light on the prospect for longer-term immunity.There is some evidence that T cells developed after exposure to other coronaviruses that cause the common cold could help fight off the new virus, known as SARS-CoV-2.A study led by the La Jolla Institute detected T cells that reacted to SARS-CoV-2 in about half of stored blood samples collected between 2015 and 2018, suggesting that the immune system cells developed after previous infection with circulating common cold coronaviruses, and that they might help protect against the new virus."It is a potentially encouraging piece of evidence," Wherry said.Vaccine candidates against COVID-19 currently in the works aim to generate.
United States
|
Cases: 46 252 513
Deaths: 750 423
Recovered: 0
|
India
|
Cases: 34 321 025
Deaths: 459 652
Recovered: 0
|
Brazil
|
Cases: 21 835 785
Deaths: 608 235
Recovered: 0
|
United Kingdom
|
Cases: 9 215 683
Deaths: 141 607
Recovered: 0
|
Russia
|
Cases: 8 494 589
Deaths: 237 619
Recovered: 0
|