Kenji Sadamasu

This study identifies the non-spike R204P mutation in the SARS-CoV-2 Omicron XEC variant as a driver of increased inflammation and pathogenicity through NF-κB activation.

This study analyzes the virological characteristics of the SARS-CoV-2 XEC variant, showing it has higher infectivity and immune evasion compared to KP.3.1.1, contributing to its higher reproductive number and potential dominance.

The paper investigates the virological features of the SARS-CoV-2 EG.5.1 variant, finding its fitness and antiviral sensitivity comparable to XBB.1.5, with structural differences in spike proteins.

This study investigates the virological properties of the SARS-CoV-2 KP.2 variant, finding it has higher viral fitness and immune resistance compared to JN.1, contributing to its rapid spread.

This study examines virological parameters of SARS-CoV-2 variants correlating with spike protein fusogenicity, finding strong links with S1/S2 cleavage efficiency and plaque size.

This study investigates the virological characteristics of the SARS-CoV-2 BA.2.86 variant, finding it has higher reproduction number than EG.5.1 but lower pathogenicity and replication capacity compared to BA.2.

This study investigates the virological properties of the SARS-CoV-2 HK.3 variant, a FLip variant with substitutions S:L455F and S:F456L, to assess its growth advantage.

The paper reports higher seroprevalence of Entamoeba histolytica compared to HIV-1 and syphilis in a Tokyo VCT center, with risk factors including male sex, older age, and syphilis positivity.