scispace - formally typeset
Open AccessJournal ArticleDOI

Sputnik V Vaccine Elicits Seroconversion and Neutralizing Capacity to SARS CoV-2 after a Single Dose.

TLDR
In this article, the authors evaluated SARS-CoV-2-specific antibody responses after Sputnik V vaccination of healthcare workers in Argentina, measuring IgG anti-spike titers and neutralizing capacity after one and two doses in a cohort of naive or previously infected volunteers.
Abstract
Massive vaccination offers great promise for halting the global COVID-19 pandemic. However, limited supply and uneven vaccine distribution create an urgent need to optimize vaccination strategies. We evaluate SARS-CoV-2-specific antibody responses after Sputnik V vaccination of healthcare workers in Argentina, measuring IgG anti-spike titers and neutralizing capacity after one and two doses in a cohort of naive or previously infected volunteers. By 21 days after receiving the first dose of vaccine, 94% of naive participants develop spike-specific IgG antibodies. A single Sputnik V dose elicits higher antibody levels and virus neutralizing capacity in previously infected individuals than in naive ones receiving the full two-dose schedule. The high seroconversion rate after a single dose in naive participants suggests a benefit of delaying second dose administration to increase the number of people vaccinated. The data presented provide information for guiding public health decisions in light of the current global health emergency.

read more

Citations
More filters
Journal ArticleDOI

Controversy surrounding the Sputnik V vaccine.

TL;DR: The Sputnik V COVID-19 vaccine is a member of the so-called vector vaccines and uses two different vectors (Ad26 priming and Ad5 boost) to reduce the risk of a reduction in the effectiveness of the vaccination.
Journal ArticleDOI

Long-term analysis of antibodies elicited by SPUTNIK V: A prospective cohort study in Tucumán, Argentina.

TL;DR: In this paper , the authors studied the long-term humoral immune response in naïve and previously infected volunteers who received Gam-COVID-Vac (SPUTNIK V) for 602 healthcare workers at 0, 14, 28, 60 and 180 days after receiving the vaccine.
Journal ArticleDOI

Humoral response to the BBIBP-CorV vaccine over time in healthcare workers with or without exposure to SARS-CoV-2

TL;DR: In this article , SARS-CoV-2-specific humoral response was analyzed over time in a group of healthcare workers who underwent vaccination with BBIBP-CorV (Sinopharm) vaccine in Argentina.
References
More filters
Journal ArticleDOI

Antibody responses to the BNT162b2 mRNA vaccine in individuals previously infected with SARS-CoV-2.

TL;DR: In this paper, the authors observed that spike-specific IgG antibody levels and ACE2 antibody binding inhibition responses elicited by a single vaccine dose in individuals with prior SARS-CoV-2 infection were similar to those seen after two doses of vaccine in individuals without prior infection.
Related Papers (5)