There is no clear answer to whether sufferers who recover from COVID-19 have Immunity. Specialists say, even if many have assumed that contracting the potentially lethal illness confers immunity, at least for some time.
For some viral diseases such as measles, overcoming the sickness confers immunity for life.
However, for RNA-based viruses such as Sars-Cov-2—the scientific identify for the bug that causes the COVID-19 disease—it takes about three weeks to build up a sufficient amount of antibodies, and even then, they may provide protection for only a few months.
At least that’s the theory. In reality, the new coronavirus has thrown up one surprise after one other, to the point where virologists and epidemiologists are positive of very little.
For SARS, which killed around 800 people internationally in 2002 and 2003, recovered patients remained protected “for about three years, on average,” said Francois Balloux director of the Genetics Institute at University College London.
Recent research from China that has not gone through peer evaluation reported on rhesus monkeys that recovered from Sars-Cov-2 and didn’t get reinfected when exposed once again to the virus.
Indeed, a number of cases from South Korea—one of the first nations struck by the novel coronavirus—found that sufferers who recovered from COVID-19 later tested positive for the virus.