Quorum sensing signals of the grapevine crown gall bacterium, sp. Rr2-17: use of inducible expression and polymeric resin to sequester acyl-homoserine lactones.

Background: A grapevine crown gall tumor strain, sp. strain Rr2-17 was previously reported to accumulate copious amounts of diverse quorum sensing signals during growth. Genome sequencing identified a single luxI homolog in strain Rr2-17, suggesting that it may encode for a AHL synthase with broad substrate range, pending functional validation.

Effect of a spatial repellent on malaria incidence in an area of western Kenya characterised by high malaria transmission, insecticide resistance, and universal coverage of insecticide treated nets (part of the AEGIS Consortium): a cluster-randomised, controlled trial.

Background: Spatial repellent products are used for prevention of insect bites, and a body of evidence exists on spatial repellent entomological efficacy. A new option for vector control, spatial repellent products are designed to release active ingredient into the air for disruption of human-vector contact thereby reducing human exposure to mosquito-borne pathogens. Clinical trials have shown spatial repellent epidemiological efficacy against Aedes-borne viruses but inconclusive outcomes against malaria.

Traumatic Tension Pneumothorax: A Tale of Two Pathologies.

Pneumothorax resulting from injury is a common phenomenon in both civilian and military trauma. A pneumothorax or simple pneumothorax is defined as air in the pleural space. A tension pneumothorax can evolve from a simple pneumothorax if there is a continued air leak from the lung without mechanism for egress.

Whole-genome sequencing of three extremophile sp. strains isolated from the Atacama Desert.

The Atacama Desert is home to bacteria that use biofilms as a means of protecting themselves against the harsh environment. To inform research regarding this survival mechanism, we cultured and sequenced the genomes of three sp. isolates from Atacama Desert soil.

Clinical features, management, and complications of paediatric button battery ingestions in Canada: an active surveillance study using surveys of Canadian paediatricians and paediatric subspecialists.

Background: Button battery ingestions pose a serious threat to paediatric health and are on the rise worldwide. Little is known about Canadian data. This study described the type of button battery ingestions Canadian paediatric physicians have observed, including treatment and complications.