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Updated: Jun 7, 2025

Models of Murine Vaginal Colonization by Anaerobically Grown Bacteria
Published on: May 25, 2022
[Bacteremia due to strict anaerobes]
C Piña Delgado1, M Bolaños Rivero, M C Carmona Tello
1María Nieves Carmona Tello, Servicio de Microbiología, Complejo Hospitalario Universitario Insular-Materno Infantil de Gran Canaria, Avenida Marítima del Sur, s/n, 35016, Las Palmas de Gran Canaria, Spain. mnievesct@gmail.com.
Anaerobic bacteremia, a serious infection with high mortality, accounted for 2.11% of positive blood cultures. Active surveillance for these anaerobic microorganisms is crucial for improved patient outcomes.
Area of Science:
- Clinical microbiology
- Infectious diseases
- Bacteriology
Context:
- Anaerobic bacteremia is associated with significant mortality (25-44%) and represents 0.5-12% of all bacteremias.
- A retrospective study analyzed 8 years (2014-2022) of patient data to understand local anaerobic bacteremia epidemiology.
Purpose:
- To determine the incidence and characteristics of anaerobic bacteremia in the local patient population.
- To compare local findings with existing data on anaerobic bacteremia.
- To emphasize the importance of actively detecting anaerobic microorganisms in blood cultures.
Summary:
- Over 8 years, 209 cases of anaerobic bacteremia were identified from 59,898 blood cultures (2.11% of positive cultures).
- The most common isolates were Bacteroides spp. (44.50%) and Clostridium spp. (20%).
- Abdominal infections were the most frequent source (39.23%), with a mean patient age of 63.55 years and 20% mortality.
Impact:
- Highlights the prevalence of anaerobic bacteremia, necessitating targeted diagnostic approaches.
- Provides epidemiological data on anaerobic bacteremia, aiding in clinical management and resource allocation.
- Reinforces the clinical significance of actively identifying anaerobic bacteria in blood cultures to guide treatment and improve patient outcomes.
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