- A examine revealed on Wednesday revealed that almost all of people that have had COVID-19 are shielded from getting it once more.
- Nevertheless, older individuals are extra vulnerable to reinfection than youthful folks.
- The examine reveals that folks over the age of 65 had solely 47% safety in opposition to repeat an infection.
A examine revealed on Wednesday revealed that almost all of people that have had COVID-19 are shielded from getting it once more for no less than six months however older individuals are extra vulnerable to reinfection than youthful folks.
The examine, showing within the Lancet medical journal, discovered that simply 0.65% of sufferers examined constructive a second time for COVID-19 after beforehand being contaminated throughout Denmark’s first and second waves. That was a lot decrease than the three.27% who had been constructive for the virus utilizing extremely correct PCR assessments after initially being unfavourable.
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Nevertheless, the examine discovered that folks over the age of 65 had solely 47% safety in opposition to repeat an infection, in comparison with 80% safety for youthful folks.
“Our study confirms what a number of others appeared to suggest: reinfection with COVID-19 is rare in younger, healthy people, but the elderly are at greater risk of catching it again,” mentioned Steen Ethelberg of Denmark’s Statens Serum Institut.
“Since older people are also more likely to experience severe disease symptoms, and sadly die, our findings make clear how important it is to implement policies to protect the elderly during the pandemic.”
The authors of the examine discovered no proof that safety in opposition to reinfection declined over a six-month follow-up interval, however mentioned additional research had been wanted to evaluate safety in opposition to reinfection from variants of the coronavirus.
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The information analysed was collected by Denmark’s nationwide testing technique, below which 69% of the inhabitants, or 4 million folks, had been examined over the course of 2020.
Commenting on the outcomes, Imperial School London professors Rosemary Boyton and Danny Altmann, mentioned the outcomes confirmed decrease safety and had been “more concerning” than earlier research.
“These data are all confirmation, if it were needed, that for SARS-CoV-2 the hope of protective immunity through natural infections might not be within our reach and a global vaccination programme with high efficacy vaccines is the enduring solution,” they mentioned in a linked remark piece additionally revealed within the Lancet.