Smart Human Immune System Infected with Common Cold Coronavirus Fights with COVID-19
Today, I will talk about an excited new research about human immune system infected with common cold coronavirus also have ability to fight with the novel coronavirus. It is the common cold coronavirus which looks like the novel coronavirus. There are four human common coronaviruses. The natural hosts are bat and mouse. Four common cold coronavirues cause mild, self-limiting respiratory infections.
Why does human immune system infected with common cold coronavirus, fight with the novel coronavirus? Human have two immune warriors. One is B cell and the other is T cell. When common cold coronaviruses infect human cells, coronaviruses spur B cell to produce antibodies. These antibodies bind and kill coronaviruses coronaviruses also excite T cells to kill human cell infected with cold coronaviruses. The new study shows that, this kind of T cells also have ability to fight with the novel coronaviruses. This is the novel coronavirus. The red parts are proteins, which recognize and anchor human cells. These proteins are called spike proteins. This new study demonstrated that all of the patients carried T cells that recognized the novel coronavirus spike protein. In addition, identified T cells target the spike protein in 15 out of 18 patients hospitalized with the novel.
To spark production of antibodies, vaccines against the virus need to stimulate T cells, Crotty notes. “It is encouraging that, we are seeing good helper T cell, responses against the novel coronavirus in the novel coronavirus cases,” he says. The results have other significant implications, for vaccine design, says molecular virologist Rachel Graham of the University of North Carolina, Chapel Hill.
In my opinion, it may explain, why 12.3 percent of New York state, has tested positive for novel coronavirus antibodies, and similar results in Santa Clara, California.
