Attenuated Legionella pneumophila Survives for a Long Period in an Environmental Water Site

Figure 1

The serogroups of L. pneumophila isolated from Ashiyu foot spa 2 and the numbers of each serogroup. L. pneumophila isolation was performed in August and September 2016 and April and May 2018. The serogroups were determined based on the reaction during the immunoagglutination serotyping with Legionella immune sera.