The analysis analyzed bacterial strains previously characterized for ESBL expression, and control strains that lacked the resistance enzymes. Species included Klebsiella E and pneumoniae. Coli , which typically infect ICU patients. These species are leading people of a large category of bacteria that take into account approximately 25 percent to 35 percent of serious hospital infections. Related StoriesBoston Children's and Rock Wellness synergy to accelerate advancement of pediatric health technologiesNew study uncovers antibiotic prescription tendencies across EnglandMD Anderson research reveals why chemotherapy medications not effective for most pancreatic cancer patientsThe firm had previously presented results for two different tests designed for Staph infections .These were propagating under a theory referred to as the Allee impact – the observation that larger groups of pets do better at establishing populations in a fresh environment. Had Austin instead pass on the rabbits into many smaller sized groups across the landscape, things might have turned out differently. By using E. Coli and some clever artificial biology techniques, engineers at Duke University have now tested the limits of the Allee effect. The total results have implications for both ecologists coping with invasive species and medical practitioners fighting infections. Organisms exhibiting a very strong Allee effect need a certain number of individuals to survive, below which the group shall collapse.