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Summary
Human milk safety is crucial. Testing 5710 samples revealed common bacterial contaminants, highlighting the need for strict sanitary measures and pasteurization to ensure safe human milk for infants.
Area of Science:
- Microbiology
- Food Safety
- Public Health
Context:
- International regulations mandate human milk be free of harmful microorganisms.
- Internal standards require total germ counts below 10,000 colony-forming units (CFU)/ml.
- Assessing microbial contamination in human milk is vital for infant health.
Purpose:
- To evaluate the microbial quality of 5710 human milk samples.
- To identify the prevalence of specific bacterial contaminants.
- To assess adherence to microbiological safety standards.
Summary:
- Testing of 5710 human milk samples revealed significant contamination: 1139 with coliforms, 1604 with Staphylococcus, and 364 with Pseudomonas aeruginosa.
- Pathogenic and aerobic spore-forming organisms were detected in 32 and 66 samples, respectively.
- While 84% of samples had <10,000 CFU/ml, common flora included Streptococci and Micrococci, with limited cultivability of Micrococci.
Impact:
- Results underscore the critical importance of stringent sanitary practices during human milk collection and storage.
- Pasteurization remains an indispensable step for ensuring the microbiological safety of collected human milk.
- Findings inform public health policies and clinical guidelines for human milk handling.