A domestically produced Escherichia coli (E. coli)-based 9-valent HPV 6/11/16/18/31/33/45/52/58 vaccine has been successfully developed and approved in China. A randomized bridging clinical trial demonstrated that this 9-valent HPV vaccine was well tolerated and highly immunogenic in healthy adolescents aged 9–17 years, with immune responses elicited by a two-dose regimen being non-inferior to those induced by a three-dose regimen in young women. These findings support the use of a two-dose immunization schedule in adolescents and provide evidence for optimizing HPV vaccination strategies.

This article highlights a "protection-pollution paradox" in no-take marine reserves (NTRs), where conservation-driven gains in fish biomass, body size, and trophic structure inadvertently increase the accumulation of legacy PCBs in apex predators. Climate change exacerbates this "toxic trap" by remobilizing sediment-bound contaminants and altering the toxicokinetics of marine organisms. To address this hidden threat, the authors advocate for an integrated management framework that combines climate-smart spatial planning, advanced biomonitoring, and targeted remediation. They emphasize shifting conservation metrics from simple biomass recovery to comprehensive ecosystem health to prevent NTRs from becoming inadvertent "toxic traps."

The etiology of liver cirrhosis has transformed from hepatitis B virus-driven to metabolic dysfunction-associated steatotic liver disease (MASLD). In this context, researchers have compared the viral and metabolic cirrhosis, highlighting the differences in their key pathogenic mechanisms and the limited applicability of viral therapeutic strategies for treatment of MASLD. This necessitates the development of new strategies for diagnosis and treatment of MASLD.