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Updated: Aug 17, 2026

Purification of Pathogen Vacuoles from Legionella-infected Phagocytes
Published on: June 19, 2012
[Antimicrobial ceramic for killing Legionella pneumophila in hot spring waters]
Takeshi Sasahara1, Shunji Okuda, Ritsuko Kikuno
1Department of Microbiology & Parasitology, Kitasato University School of Medicine.
Abstract:
Killing of Legionella pneumophila by an antimicrobial ceramic was evaluated during culture in nine kinds of hot spring water at 40 degrees C. After 24 hours, the efficacy against L. pneumophila varied, depended on water quality. The strongest antibacterial effect was seen in chloride hot spring water from Wakayama and in deionized water. In four hot spring water samples (sulfur and hydrogen carbonate springs from Fukushima, simple thermals from Mie, and radioactive spring from Tottori), the decrease was < -2 log cfu after 48 hours. These results suggest that the antimicrobial ceramic is able to eradicate Legionella from hot spring waters.
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