# Identification of a new Salmonella serovar – Salmonella Weitmar (8:z41:1,5)

## TL;DR

A new Salmonella serovar, Weitmar, was identified in a patient in Germany, showing the importance of microbiological surveillance and diagnostics.

## Contribution

The discovery and confirmation of a novel Salmonella serovar, Weitmar, through combined diagnostic methods.

## Key findings

- A new Salmonella serovar (Weitmar) was identified from a patient with acute diarrhea and fever.
- The strain showed a unique antigenic profile confirmed by the WHO Collaborating Centre for Salmonella research.

## Abstract

We report the first human case of a novel Salmonella enterica serovar Weitmar (8:z41:1,5), isolated from a 41-year-old outpatient with acute diarrhea and fever in Bochum, Germany. Identification involved culture, multiplex PCR, MALDI-TOF MS, biochemical testing, and reference lab serotyping. The strain showed a unique antigenic profile and was confirmed by the WHO Collaborating Centre for Reference and Research on Salmonella. This case illustrates a routine but essential aspect of microbiological surveillance, highlighting how combined diagnostics and international collaboration support the reliable identification of novel Salmonella serovars.