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Deprecated: Implicit conversion from float 267.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Hemodial+Int 2021 ; 25 (4): E53-E56 Nephropedia Template TP
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One-year persistence of neutralizing anti-SARS-CoV-2 antibodies in dialysis patients recovered from COVID-19 #MMPMID34231319
Alfano G; Fontana F; Morisi N; Giaroni F; Mori G; Guaraldi G; Magistroni R; Cappelli G
Hemodial Int 2021[Oct]; 25 (4): E53-E56 PMID34231319show ga
The immunological mechanisms that modulate immune response to SARS-CoV-2 infection remain elusive. Little is known on the magnitude and the durability of antibody response against COVID-19. There is consensus that patients with immune dysfunction, such as dialysis patients, may be unable to mount a robust and durable humoral immunity after infections. Recent studies showed that dialysis patients seroconverted after COVID-19, but data on the durability of the immune response are missing. We reported the data of a durable anti-spike protein seroconversion after natural SARS-CoV-2 infection in three patients on hemodialysis with a mean age of 67.2 +/- 13.8 years. A mean antibody titer of 212.6 +/- 174.9 UA/ml (Liaison(R), DiaSorin) was found after one year (range, 366-374 days) from the diagnosis of COVID-19. In conclusion, this case series provided evidence that patients receiving hemodialysis who recovered from severe COVID-19 were able to mount a long-lasting immune response against SARS-CoV-2. Although the protective capacity of this long-term immunity remains to be determined, these patients did not report signs of reinfection after recovery from COVID-19.