New hope against Covid-19 pandemic, infection and vaccine may give lifelong immunity

In new studies, scientists found that immunity against Sars-2 or Covid-19 lasted for a year at the least. They estimated that immunity against Covid-19 could last for decades at least in some people. 

At least two new studies have given hope that people infected with Sars-2 or vaccinated against Covid-19 may have lifelong immunity against the disease. This, however, does not guarantee protection from re-infection but offers hope that the human body can develop antibodies that can fight Covid-19 for long. These studies published here and here are significant as cases of re-infection have left both scientists and the public worried and wondering whether immunity against the Sars-2 coronavirus is short-lived. The fear has been that repeated vaccination -- annual or six-monthly vaccination -- may be required to ensure consistent immunity against Sars-2 or Covid-19. In these studies, scientists found that immunity against Sars-2 or Covid-19 lasted for a year at the least. They estimated that immunity against Covid-19 could last for decades at least in some people.