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The Omicron variant evades vaccine-induced neutralization but also fails to form syncytia, shows reduced replication in human lung cells and preferentially uses a TMPRSS2-independent cell entry pathway, which may contribute to enhanced replication in cells of the upper airway. Altered fusion and cell entry characteristics are linked to distinct regions of the Omicron spike protein.

Chronic infection with SARS-CoV-2 leads to the emergence of viral variants that show reduced susceptibility to neutralizing antibodies in an immunosuppressed individual treated with convalescent plasma.

Antibiotic resistance is biologically driven by antibiotic use but other social, environmental, demographic, economic and behavioural factors also contribute. Here, the authors conduct a cross-sectional study to identify risk factors jointly associated with multidrug resistant urinary tract infection in East Africa.

A case–control study investigating the causes of recent cases of acute hepatitis of unknown aetiology in 32 children identifies an association between adeno-associated virus infection and host genetics in disease susceptibility.

The bacterium Streptococcus suiscauses respiratory tract infections in pigs and meningitis in humans. Here, the authors show that human disease isolates are limited to a single virulent population and find no consistent genomic differences between pig and human isolates.

A population-genomic analysis of more than 800 isolates of Staphylococcus aureus, representing the breadth of host-species diversity, reveals details of the pathogen’s evolutionary trajectory, including how this has been influenced by animal domestication and antibiotic use.

Genomic epidemiology reveals multiple travel-related introductions of SARS-CoV-2 from mainland Europe into Scotland during the first wave of COVID-19.

An investigation using various methods reports an association between adeno-associated virus 2 and paediatric hepatitis of unknown aetiology.

Methicillin-resistant strains of Staphylococcus aureus appeared in European hedgehogs in the pre-antibiotic era as a co-evolutionary adaptation to antibiotic-producing dermatophytes and have spread within the local hedgehog populations and between hedgehogs and secondary hosts.

Secondary and exploratory analyses of the phase 3 NRG GY018 trial show that, in patients with advanced or recurrent endometrial cancer, first-line treatment with pembrolizumab together with paclitaxel and carboplatin leads to prolonged progression-free survival, according to blinded independent central review.

Populations of bacterial pathogens can be diverse within colonized individuals. Here, the authors sequence the genomes of methicillin-resistant Staphylococcus aureusisolated from staff and animal patients at a veterinary hospital and show considerable within-host diversity that can rise and fall over time.

Group B streptococci (GBS) started causing serious infections in newborn babies in the 1960s. Here, the authors show that the emergence of GBS diseases was associated with worldwide dissemination of a few clones that were resistant to tetracycline, an antibiotic that became widely used in the 1950s.

The genus Serratia includes clinically-important and diverse environmental bacteria. Here, Williams et al. assemble and analyse a representative set of 664 genomes from across the genus, including historic isolates, to provide a genome-based phylogenetic framework for a better understanding of the emergence of clinical and environmental lineages of Serratia.

Whole-genome sequencing (WGS) can support drug resistance surveillance, but is rare in low- and middle-income countries. Here, the authors integrate WGS within the national antimicrobial resistance surveillance program in the Philippines and conduct a retrospective sequencing survey to characterize bacterial populations and dissect resistance phenotypes.

A multi-ancestry genome-wide association meta-analysis of kidney cancer identifies 63 regions associated with disease susceptibility including one locus that was associated with increased risk in individuals with African ancestry.

Lenardo and colleagues identify a new human genetic disease, GISELL, whereby ceramide lipid homeostasis is disrupted, thereby altering T cell longevity. Deficiency of GTPase of the immunity-associated protein 5 (GIMAP5) in patients leads to cellular senescence, immunodeficiency and early mortality.

Analyses of 2,083 globally distributed group A Streptococcus (GAS) genomes enable the development of a compendium of all GAS vaccine antigen sequences, providing a platform for population-genomics-informed vaccine design.

Gene tandem amplifications can drive bacterial evolution. Here, Belikova et al. identify copy number variations of lipoprotein-encoding genes in Staphylococcus aureus clinical isolates, and show that the loci expand and contract during bacterial growth in vitro and in mice, leading to changes in immunostimulatory capacity.

Collateral sensitivity-inducing mutations in methicillin-resistant Staphylococcus aureus strains lead to re-sensitization of bacteria to penicillin–clavulanic acid combinatorial treatment.

Chromodomain Helicase DNA-binding (CHD) proteins have been implicated in neurodevelopmental processes. Here, the authors identify missense variants in CHD3 that disturb its chromatin remodeling activities and cause a neurodevelopmental disorder with macrocephaly and speech and language impairment.

Whole genome sequencing provides a picture of Burkholderia pseudomallei dissemination and evolution.

Claire Chewapreecha et al. combine 753 newly sequenced Thai Burkholderia pseudomallei isolates with 258 Australian isolates to identify genes associated with either clinical or environmental strains. They find 47 genes, 12 of which replicate in both locations, that may provide clues to the strategy used by this microbe to adapt to survive in wide range of ecological niches, including human hosts.