The co-occurrence of KPC and NDM carbapenemases in Gram-negative bacteria presents a serious and expanding global health threat. This study characterized 338 KPC-2/NDM-1 dual-positive isolates from 23 countries, including 41 clinical strains sequenced through hybrid second- and third-generation platforms from China’s national surveillance network. These isolates spanned six genera, 58 species, and 138 sequence types, reflectin...

Diatoms and dinoflagellates are two pivotal phytoplankton groups present in coastal ecosystems that play key roles in marine food webs and biogeochemical cycles. The diatom-to-dinoflagellate ratio (diat/dino ratio) serves as an indicator of ecosystem status and phytoplankton community dynamics; however, the specific taxa that contribute to its variability remain poorly understood. This study investigated the phytoplankton comm...