Salmonella bacteriuria: an increasing entity in elderly women in the United States

Abstract

Salmonellosis is a major cause of gastroenteritis in the United States and can lead to septicaemia, and other extra-intestinal illness including urinary tract infections (UTIs). To examine trends in Salmonella bacteriuria in the United States, surveillance data from the National Salmonella Surveillance System from 1980 to the end of 1999 were reviewed. Overall, 17442 urinary Salmonella isolates were reported, representing 2% of all Salmonella isolates from a known source. This proportion increased from 2% during 1980--1984 to 4% during 1995--1999. The median age of persons from whom these isolates came was 51 years; 12,176 (70 %) were women. Compared to the last national survey conducted between 1968 and 1979, the rate of Salmonella bacteriuria increased among women, from 2.0 per million persons in 1980 to 3.7 in 1999; the highest rate occurring in women > or = 70 years. National reporting of Salmonella bacteriuria increased in absolute incidence and as a proportion of all Salmonella, especially in elderly women and may represent an increase in the incidence of Salmonella UTIs. Better understanding of the uropathogenicity of Salmonella serotypes may further clarify the mechanisms of Salmonella UTIs.

Bacterial Enteric Infections Among Older Adults in the United States: Foodborne Diseases Active Surveillance Network, 1996–2012

“…In contrast, laboratory-confirmed Salmonella infections occurred more often in women, which is due to their higher rate of urinary tract infections. The higher rate of Salmonella urinary tract infections in older women is well documented (Sivapalasingam et al ., 2004). …”

Urinary tract infection due to non-typhoidal Salmonella: Report of 19 cases

“…15 Recently, an increased in the incidence of Salmonella UTI has been reported in the United States, especially in elderly women. 16 In contrast, NTS has rarely been documented to cause UTI in children. 17 In our series, the mean age was 62.5 years old and all patients had more than 55 years old, except two children.…”

Genome Sequence of Salmonella enterica Serotype Tennessee Strain CDC07-0191, Implicated in the 2006-2007 Multistate Food-Borne Outbreak Linked to Peanut Butter in the United States

“…Compared with other S. enterica serotypes, Tennessee appeared to be more frequently associated with urinary tract infections (4). The strain CDC07-0191 was recovered from the urine sample of an epidemiologically linked patient in the 2006-2007 outbreak linked to peanut butter.…”