Public Health.

Background: In aging research, there is an increasing focus on the decades leading up to changes in cognition. Biomarker studies have suggested that biochemical brain fluctuations can occur up to 20 years prior to clinical symptoms. Including populations of adults who are 20 years away from any cognitive symptomatology in aging research can shed a light on the longitudinal factors involved in brain aging.

Surveillance and antimicrobial resistance of Salmonella strains isolated from slaughtered pigs in Spain.

The prevalence of and the antibiotic resistance shown by Salmonella isolated from pigs in Andalusia (southern Spain) is reported. Salmonella enterica was recovered from 40 (33%) of 121 sampled herds, and a total of 65 isolates were serotyped. The most common Salmonella serotypes were Typhimurium and Rissen (30.