ArticleMicrobiology spectrum2026
Development of an RT-qPCR and a Next-Generation Sequencing approach to assess viral shedding of NDV-based SARS-CoV-2 variant vaccines.
Article in Microbiology spectrum, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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9 authors.
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Abstract
Live-attenuated intranasal vaccines offer great promise to generate mucosal immunity and reduce breakthrough infections after vaccination. Previously, we have developed a Newcastle disease virus (NDV)-based vaccine expressing the spike (S) protein of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), named NDV-HXP-S. This vaccine can be administered intranasally as a live-attenuated vector to provide both systemic and mucosal immunity. With the appearance of new SARS-CoV-2 variants of concern, new NDV-HXP-S variant-based vaccines have been developed. These new NDV-HXP-S variant vaccines can be combined in a multivalent formulation to extend their protection against other SARS-CoV-2 variants of concern. One of the main concerns when administering a live-attenuated vector intranasally is the possible vaccine shedding after vaccination. In the present work, we have developed a reverse transcriptase-quantitative polymerase chain reaction (RT-qPCR) method to evaluate NDV-HXP-S IMPORTANCE: Live-attenuated intranasal vaccines offer great promise to generate mucosal immunity and reduce breakthrough infections after vaccination. In this work, we have developed a combined reverse transcriptase-quantitative polymerase chain reaction and next-generation sequencing-directed approach to assess the viral shedding of multivalent Newcastle disease virus-based severe acute respiratory syndrome coronavirus 2 vaccines. This new formulation will be evaluated as a mucosal booster in phase I clinical trials next year.
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