ABSTRACT
BACKGROUND: Infection with Salmonella has become an increasing problem worldwide. Recently, nontyphoid Salmonella (NTS) has become a global concern causing threat to the health of human. It causes
gastrointestinal infection which may be self-limiting, but invasive infections may
be fatal, requiring appropriate therapy. This study was done to analyze the spectrum
of NTS infections causing extraintestinal infections and its susceptibility pattern
from a tertiary care center in India.
MATERIALS AND METHODS: The medical records of 27 patients whose cultures were positive for NTS between
the years 2013–2016 were included in this retrospective study. The relevant demographic,
clinical, and laboratory data were analyzed.
RESULTS: Among the 27 patients, predominant patients were in the age group of 20–30 years.
The male to female ratio is 1.7:1. Salmonella typhimurium was the predominant NTS isolated among 15/27 (55.5%), followed by Salmonella enteritidis 4/27 (14.8%). 18/27 (66.6%) of NTS were isolated from blood. Nalidixic
acid was sensitive in 2/15 of S. typhimurium, 2/4 of S. enteritidis and 1/3 of Salmonella weltevreden, while others are nalidixic acid-resistant implying resistance to quinolones.
They were sensitive to other antibiotics reported.
CONCLUSION: This study highlights the spectrum of NTS causing extraintestinal infections which
is an emerging infection occurring mostly in immunosuppressed individuals. There should
be a high degree of clinical suspicion which would help in the early diagnosis and
management of patients.
Keywords
Extraintestinal - focal - immunocompromised - invasive - nontyphoid
Salmonella
