Streptococcus agalactiae in childbearing age immigrant women in Comunitat Valenciana (Spain)

Background: The streptococcus agalactiae infectious leading to early neonatal morbidity and mortality,the streptococcus agalactiae screen became an important examination for pregnant women. The Centers for Disease Control and Prevention (CDC) recommends whole detection protocols of isolation and culture on streptococcus agalactiae.However, The essential factors including incubation time of agar plates, enrichment time of broth, and transport media storage conditions be ignored. This study was designed to understand above easy ignored point and to provide scientific proof for optimization detection method, revision of health standards and prevention and control of disease. Methods: The transport medium without and with enrichment were directly inoculated onto Sheep blood agar plate for 24~48 hours. The positive detection rate of streptococcus agalactiae on different incubation time, with and without enrichment were compared,respectively. The transport medium with enrichment were inoculated for 24~48 hours.The positive detection rate of streptococcus agalactiae on different enrichment time were compared. The transport medium were respectively stored at 2℃~8℃ and 20℃~25℃. Interval 24 hours within 5 days, The recovery rate of streptococcus agalactiae on transport medium different storage temptature were compared. The growth of streptococcus agalactiae colonies were examined for pale pink to red, round and pearly colonies. The isolates colonies were identified by matrix assisted laser desorption ionization-time of flight mass spectrometry to confirm negative or positive. Results: The overall results shown that the detection rate were significantly higher at 48 hours with directly culture methods (P＜0.01)or after enrichment culture methods (P＜0.05). The detection rate have no difference after enrichment for 24 hours or 48 hours (P＞0.05). The recovery rate of streptococcus agalactiae transport medium (stored at 2℃~8℃) were 100% within 4 days and 83.33% at 5th day. However, the recovery rate of streptococcus agalactiae transport medium (stored at 20℃~25℃) were 100% within 2 days,97.22% at 3th day, 52.78% at 4th day and 33.33% at 5th day, respectively. Conclusions: In conclusion, the results suggested that the enrichment culture time was 24 hours, the transport media stable best time is 2 days stored at 20℃~25℃ or 4 days stored at 2℃~8℃, and the best incubation time is 48 hours for streptococcus agalactiae clinical testing in pregnant women.

show abstract

Prevalence and Antibiotic Resistance of Streptococcus agalactiae in Women of Childbearing Age Presenting Urinary Tract Infections from Western Romania

Marc,

Susan,

Sprintar

et al. 2024

Life

View full text Add to dashboard Cite

Urinary tract infections (UTIs) are a common bacterial infection in women of childbearing age. Streptococcus agalactiae (Group B Streptococcus—GBS), a rare causative pathogen of UTIs in this population, is particularly important due to the potential risk during pregnancy, when it can lead to life-threatening neonatal infections. The current study analyzed 17,273 urine samples collected from consecutive women aged 18–45 years from Arad County, Western Romania. A total of 2772 samples tested positive for UTIs. In 130 cases, GBS was identified as the causative agent. Univariate logistic regression analysis revealed that women aged 25–34 years were more likely to test positive for GBS than those aged 18–24 years (cOR = 1.91, 95% CI: 1.07–3.43, p = 0.03). Antibiotic sensitivity testing revealed that all GBS strains were fully sensitive to penicillin, ampicillin, and vancomycin. High resistance was observed for clindamycin (77.34%) and tetracycline (88.46%). While GBS was found to be a rare pathogen in UTIs, our results underscore the importance of monitoring GBS in women of childbearing age, especially due to its risks during pregnancy, and emphasize the need for appropriate antibiotic management.

show abstract

Streptococcus agalactiae in childbearing age immigrant women in Comunitat Valenciana (Spain)

Cited by 3 publications

References 30 publications

Out of pocket health-care services in Germany during pregnancy under consideration of migration and acculturation

Out of pocket health-care services in Germany during pregnancy under consideration of migration and acculturation

To Evaluate Impact on Detection Rate of Streptococcus Agalactiae in the Third Trimester of Pregnancy

Prevalence and Antibiotic Resistance of Streptococcus agalactiae in Women of Childbearing Age Presenting Urinary Tract Infections from Western Romania

Contact Info

Product

Resources

About