Nivedita Gupta

The paper characterizes two indigenous EV-A71 genogroups (D and G) from India through genome sequencing and phylogenetic analysis, revealing their distinct evolutionary paths and geographic restriction.

The paper evaluates the neutralizing activity of sera from vaccinated and recovered individuals against SARS-CoV-2 Delta, Delta AY.1, and B.1.617.3 variants, finding reduced but still effective neutralization.

This study compares the pathogenicity and host response of SARS-CoV-2 Delta and B.1.617.3 variants with B.1 in Syrian hamsters, finding increased disease severity and transmission potential for Delta.

The paper analyzes spike protein mutations in SARS-CoV-2 variants from Maharashtra, India, identifying lineage B.1.617 with mutations linked to increased transmissibility and reduced antibody neutralization.

Sera from 26 BBV152/COVAXIN recipients neutralised the UK variant about as well as a heterologous strain in plaque reduction tests, arguing against escape from vaccine-induced antibodies.