Wednesday, February 04, 2026
Wednesday, February 04, 2026

Pneumonia is an infection of the lung alveoli caused by bacteria, viruses or fungi. It is one of the leading causes of morbidity and mortality worldwide, representing a clinical and economic burden and a global public health problem. The microbial ecosystem (or microbiome) of the human respiratory tract colonizes different niches. The respiratory tract microbiome is of interest to scientists as it contributes to human health by stimulating the immune system and protecting against infection by pathogens. Scientists have now demonstrated that the microbiome composition, pathogen load and clinical interventions influence the severity of bacterial pneumonia caused by Legionella pneumophila.

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