Covid-19 Reinfection Creates Concerns About Immunity
Windowofworld.com – Two patients with Covid-19 in two European countries have reportedly been reinfected by the virus. The report raises concerns about people’s immunity to Covid-19, as the world struggles to tame the pandemic.
The cases, in Belgium and the Netherlands, follow reports in late August by researchers in Hong Kong of a man there who contracted Covid-19 again after four and a half months of being declared cured, the second first documented infection. This man was reported to have contracted another type of Covid-19.
As is known, Covid-19 has mutated into several types of viruses, some of them are weak and some of them are more contagious.
That has raised concerns about the efficacy of a potential vaccine against the virus, which has killed hundreds of thousands of people, although experts say there will need to be more cases of reinfection for this to be justified.
Belgian virologist Marc Van Ranst said the case in Belgium was of a woman who contracted Covid-19 for the first time in March and then with another type of Covid-19 in June. “Further cases of reinfection are likely to surface,” he said.
Van Ranst said that women in their 50s have very few antibodies after the first infection, even though they may limit the disease. “Reinfection cases are probably a limited exception, although it is too early to tell and many are likely to emerge in the coming weeks,” he said.
“Covid-19 looks more stable than the influenza virus, but it’s changing. The virus is mutating and that means a potential vaccine won’t be a vaccine that will last forever, for 10 years, maybe not even five years. Just like flu, it has to be redesigned in an ongoing manner. regularly, “he said, as reported by Japan Today.
The expert, who sits on several Belgian Covid-19 committees, said vaccine designers would not be surprised by this. “We want the virus to be more stable than it really is, but you can’t force nature,” he said.
The National Institute for Public Health in the Netherlands said they were also observing cases of reinfection in the Netherlands with a different strain of the virus.
“Obviously there has been a first and second infection with a large number of viruses. Enough to be able to determine the genetic code of a virus, that is what shows that they are different,” said Marion Koopmans, a leading virologist in the Netherlands and member of the World Health Organization (WHO) scientific advisory group. ).
He added that the Dutch elderly patient has a weak immune system, which explains the patient’s situation. “People are worried and asking if reinfection is commonplace. I don’t think so,” he added.