This child appears to be immune to Covid-19

Despite repeated contact with his positive and symptomatic parents, this child has never tested positive for Covid-19, has never had symptoms, and has developed the most robust immunity.

In children, infection with SARS-CoV-2 often results in an absence of symptoms or a mild to moderate form of the disease. Severe forms in children are extremely rare. However, if they are infected, they will test positive for the SARS-CoV-2 test like everyone else. In an Australian family, despite repeated contact with his positive and symptomatic parents, a young child never tested positive for SARS-CoV-2 and never suffered from symptoms from COVID-19. Even more surprising was that he was one immunity most robust. Case study is published in the magazine Nature.

A case study about the family

In the surrounding recklessness of the world before this, this young child’s parents returned home after being invited to a wedding. On their return they suffered from cough, stuffy nose, fever and headaches: classic symptoms moderate Covid-19. From that moment on, the whole family was recruited by theMurdoch University Children’s Research Institute (MCRI), in Victoria, Australia, to participate in a case study.

Parents and children were all subjected to clinical, virological, cellular, immune and serological tests. Immune profiles both at the cellular level and the cytokine response were the same at all stages in parents and children. Likewise, the amount ofimmunoglobulins A (IgA), first-line immunity was strictly identical in all family members. But in one of the children, a more robust immunity developed, with immunoglobulins G (IgG), similar to that of infected people (in this case, parents).

Important results for a better understanding

Faced with these results, the authors conclude: ” These data indicate that children can develop immune response on SARS-CoV-2 without virological confirmation of infection, increasing the possibility that immunity in children may prevent the establishment of SARS-CoV-2 infection. Relying on routine virological and serological testing may not identify exposed children, with implications for epidemiological and clinical studies throughout life. “

However, this study remains a case study and will have to be confirmed by other experiences. However, these results are alarming and must be challenged the scientific community. The Colleague Professor MCRI Nigel Crawford, who oversaw the study, says: ” Studying the immune responses to SARS-CoV-2 in all age groups is essential to assess disease susceptibility and differences in gravity and the vaccines candidates. “

What to remember

  • An Australian family has been infected with SARS-CoV-2.
  • She participated in a study to study a plethora of physiological features in family members.
  • In the batch, a child has never tested positive for SARS-CoV-2, has never had symptoms of Covid-19, but has still developed robust immunity.

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