A group of new studies confirmed that scientists - who had been monitoring the immune responses of Corona virus patients for months - began to notice encouraging signs of these patients acquiring strong and lasting immunity, even in people who had mild symptoms.
The American New York Times said that disease-fighting antibodies, as well as immune cells called B and T cells, are able to recognize the virus; They remain active for months after a patient has recovered from the infection, which is encouraging about the body's strong immune response to other viruses.
Marion Bieber, an immunologist at the University of Washington and the author of one of the new studies currently under review in the journal Nature, says: "This is exactly what we hope to happen, as all the cells stay there to have a completely protective immune response."
The newspaper quoted Smita Ayer, an immunologist at the University of California, who studies immune responses to the Coronavirus in rhesus macaques, and did not participate in these research papers. "These results are very promising, and call for some optimism about herd immunity, and may help find a vaccine."
Although researchers cannot predict how long these immune responses will last, many experts consider the data an optimistic indicator that the body has a good chance of fighting the Corona virus if exposed again.
Dr Eber said that protection from reinfection cannot be fully confirmed until there is evidence that most people who are exposed to the virus again are actually able to fight it.
But the results could help allay recent concerns about the virus’s ability to trick the immune system into a state of amnesia, leaving people vulnerable to repeated episodes of the disease.