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Disclaimer: Early release articles are not considered as final versions. Any changes will be reflected in the online version in the month the article is officially released.

Volume 31, Number 1—January 2025
Synopsis

Cluster of Legionellosis Cases Associated with Manufacturing Process, South Carolina, USA, 2022

Hani M. Mohamed1Comments to Author , Lindsay Zielinski1, Abdoulaye Diedhiou2, Nakia Clemmons2, Jessica C. Smith, Jessica L. Rinsky, Troy Ritter, Melisa Willby, Nancy Burton, Karl Feldmann, Kevin Dunn, Rebecca Whisenhunt, Victoria Greer, Alberto M. Acosta, Mitchell Garber, Claressa E. Lucas, Kelley C. Henderson, Chris Edens, and Linda Bell
Author affiliation: South Carolina Department of Health and Environmental Control, Columbia, South Carolina, USA (H.M. Mohamed, A. Diedhiou, R. Whisenhunt, V. Greer, L. Bell); Centers for Disease Control and Prevention, Atlanta, Georgia, USA (L. Zielinski, N. Clemmons, J.C. Smith, T. Ritter, M. Willby, C.E. Lucas, K.C Henderson, C. Edens); National Institute for Occupational Safety and Health, Cincinnati, Ohio, USA (J.L. Rinsky, N. Burton, K. Feldmann, K. Dunn); Weill Cornell College of Medicine, New York, New York, USA (A.M. Acosta); Engineering Systems Inc., Aurora, Illinois, USA (M. Garber)

Main Article

Figure 2

Epidemic curve of reported cases of legionellosis associated with a manufacturing facility and timeline of corrective actions for potential exposure sources, South Carolina, USA, 2022. Of 34 total cases, 10 were confirmed LD cases, 20 probable LD cases, and 4 probable Pontiac fever cases. Red bar on x axis indicates when the cooling towers, water jet cutters, the chiller, and floor scrubbers were all shut off on September 18, 2022. The floor scrubbers were remediated on October 3, 2022. Blue bars on the x axis indicate remedial treatment of remaining water-processing devices on September 22; October 3, 14, 16, 17, 21, 27, and 28; and November 1, 2022. Date of death for 1 patient with probable LD was used as the illness onset date because we were unable to obtain a symptom onset date. LD, Legionnaires’ disease.

Figure 2. Epidemic curve of reported cases of legionellosis associated with a manufacturing facility and timeline of corrective actions for potential exposure sources, South Carolina, USA, 2022. Of 34 total cases, 10 were confirmed LD cases, 20 probable LD cases, and 4 probable Pontiac fever cases. Red bar on x axis indicates when the cooling towers, water jet cutters, the chiller, and floor scrubbers were all shut off on September 18, 2022. The floor scrubbers were remediated on October 3, 2022. Blue bars on the x axis indicate remedial treatment of remaining water-processing devices on September 22; October 3, 14, 16, 17, 21, 27, and 28; and November 1, 2022. Date of death for 1 patient with probable LD was used as the illness onset date because we were unable to obtain a symptom onset date. LD, Legionnaires’ disease.

Main Article

1These first authors contributed equally to this article.

2These authors contributed equally to this article.

Page created: December 10, 2024
Page updated: December 18, 2024
Page reviewed: December 18, 2024
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