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Understanding the mechanisms and evolution of pathogenicity in fungi will bring us a step closer to reducing the annual toll of 1.6 million deaths from fungal disease.
A comprehensive survey of secondary metabolites encoded in bacteria identifies large differences in biosynthetic diversity among genera and pinpoints those that can be targeted for novel chemistries provisionally suitable as antimicrobials.
The gut bacterium Clostridium sporogenes uses reductive Stickland reactions for energy and consequently produces metabolites that circulate in the host.
Multi-omics analyses of faecal, urine and blood samples from women with and without recurrent urinary tract infections reveal that gut dysbiosis and differential immune responses may play a role in risk of infection via the gut–bladder axis.
A comparison of the repertoire of SARS-CoV-2-specific epitopes targeted by T cells induced by vaccination or natural infection reveals that T cells predominantly target non-spike epitopes in convalescent individuals, while there is a broader spike-specific CD8+ T-cell response in vaccinees. Despite differences in T-cell response, the targeted T-cell epitopes were conserved between the wild-type and Omicron variants in both groups.
The development of a high-throughput tagging platform to screen kinases of the parasite Toxoplasma gondii led to the identification of a kinase regulating invasion of and egress from host cells.
A longitudinal analysis of viral expansion and clearance rates in 60 individuals sampled daily during acute infection reveals high inter-individual variation in infectious virus shedding, which may contribute to superspreading.
β-glucuronidases produced by gut microbiota members mediate proteolytic activity in the gut via the production of unconjugated bilirubin, which is dysregulated in irritable bowel syndrome.
An inhibitor of the SARS-CoV-2 main protease (Mpro), Y180, showed therapeutic efficacy against wild-type SARS-CoV-2 and its variants including Omicron after oral administration and improved survival in a humanized mouse model.
Whole-genome sequencing and population genomics of 218 Aspergillus fumigatus environmental and clinical isolates reveals strong genetic clustering and the occurrences of near-identical genotypes, indicating the infection of patients with resistant isolates from the environment.
Gut virome analysis of preterm infants at risk of developing necrotizing enterocolitis identifies a conserved viral signature that precedes disease onset.
The mosquito gut resident bacterium Pseudomonas alcaligenes protects the integrity of the mosquito peritrophic matrix by catabolizing 3-hydroxykynurenine, thereby contributing to protection against Plasmodium infection.
A substudy nested within a double-blind cluster-randomized controlled trial in Bangladesh shows that drinking chlorinated water had relatively minor impacts on children’s gut microbiome development in this setting.
Crewed missions to other planets are currently being planned, and fully automated, robotic missions are likely to return samples from other planets to Earth, so it will be important to carefully evaluate and minimize any associated microbiological risks.