Bacterial DNA from the Black Death found in teeth
Remnants of the genetic makeup of plague bacteria have been found in thousands of victims of the Black Death and the major plague epidemics at the end of the Iron Age. The DNA analyses may predict the next plague outbreak.
The Black Death bacteria continues to kill
It took almost six months for researchers to get permission from the FBI to study the plague bacteria that, in its time, killed half of Norway’s population. Now, an antibiotic-resistant strain of the bacteria has been found.
New methods for fecal source tracking
Fecal contamination in water is one of the most common reasons for human diseases. Molecular methods can reveal if the contaminants derive from human or animal excreta, and whether they constitute a health risk or not.
A whole-grain diet makes for healthier chickens
Infection from Campylobacter jejuni bacteria is far more common than salmonella, and is the commonest cause of bacterial diarrhoea in western countries.
A microorganism's day at work
A bacterium cultivated in the highlands of Bolivia meets a microorganism from an alkaline lake in Kenya. Together they create a team of billions of tireless workers that provide humans with fuel for our vehicles or plastic bags to carry our groceries.
Eradicating the spores
Spore-forming bacteria are one of the greatest microbial challenges to food safety in ready meals, and a single heat treatment at 70–80° C can in fact stimulate the growth of certain bacteria. But could a double heat treatment of ready meals increase the safety?