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Reinfection with SARS-CoV-2 described in 25-year-old

A case of reinfection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)has been described in a study published online in The Lancet Infectious Diseases.

Richard L. Tillett, Ph.D., from the University of Nevada, Las Vegas, and colleagues described an investigation of two instances of SARS-CoV-2 infection in a 25-year-old man who presented to health authorities on two occasions with symptoms of viral infection, once in April 2020 and a second time at the end of May and beginning of June 2020.

At each presentation and twice during follow-up, nasopharyngeal swabs were obtained from the patient.

To confirm SARS-CoV-2 infection, nucleic acid amplification testing was conducted. Next-generation sequencing of SARS-CoV-2 extracted from nasopharyngeal swabs was performed.

The researchers found that the patient had two positive tests for SARS-CoV-2 — on April 18, 2020, and June 5, 2020 — and two negative tests during follow-up in May 2020.

Genetically significant differences were seen between each variant associated with each instance of infection in a genomic analysis of SARS-CoV-2. Symptomatically, the second infection was more severe than the first.

“It is important to note this is a singular finding and does not provide
generalizability of this phenomenon,” one co-author said in a statement.

“While more research is needed, the possibility of reinfections could have significant implications for our understanding of COVID-19 immunity, especially in the absence of an effective vaccine.”

LINK TO SOURCE

REFERENCE:
Tillett et al: Genomic evidence for reinfection with SARS-CoV-2: a case study; https://www.thelancet.com/journals/laninf/article/PIIS1473-3099(20)30764-7/fulltext

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