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Volume 18, Number 11—November 2012


Streptococcus pneumoniae Serotype 15A in Psychiatric Unit, Rhode Island, USA, 2010–2011

Katherine Fleming-DutraComments to Author , Chukwuma Mbaeyi, Ruth Link-Gelles, Nicole Alexander, Alice Guh, Elizabeth Forbes, Bernard Beall, Jonas M. Winchell, Maria da Gloria Carvalho, Fabiana Pimenta, Maja Kodani, Cindy Vanner, Hilary Stevens, Diane Brady, Mardea Caulcrick-Grimes, Utpala Bandy, and Matthew R. Moore
Author affiliations: Centers for Disease Control and Prevention, Atlanta, Georgia, USA (K. Fleming-Dutra, C. Mbaeyi, R. Link-Gelles, A. Guh, B. Beall, J.M. Winchell, M.G. Carvalho, F. Pimenta, M. Kodani, H. Stevens, M.R. Moore); Rhode Island Department of Health, Providence, Rhode Island, USA (N. Alexander, C. Vanner, D. Brady, M. Caulcrick-Grimes, U. Bandy); Brown University–affiliated Hospitals, Providence (N. Alexander); Brown University, Providence (E. Forbes)

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Table 1

Characteristics of 20 psychiatric unit patients during Streptococcus pneumoniae serotype 15A outbreak, Rhode Island, USA, December 25, 2010–January 31, 2011

Characteristic No. (%) patients
Male sex 14 (70.0)
Median age, y (range) 13 (4–24)


16 (80.0)


4 (20.0)


Underlying medical conditions


6 (30.0)

Chronic heart disease

2 (10.0)

Other risk factors for pneumococcal infection†

Median length of stay, days on Unit 1 as of January 30, 2011 (range) 71 (1–706)
Receiving systemic antimicrobial drugs during January for illness unrelated to outbreak 1 (5.0)
No. patients on Unit 1 as of January 30, 2011

Current in-patient

15 (75.0)

Day program patient‡

1 (20.0)

Discharged (since December 25, 2010)

4 (5.0)

*None were treated with systemic steroids (i.e., none had an indication for vaccine) (3,4).
†Includes chronic lung disease (other than asthma), diabetes mellitus, cerebrospinal fluid leaks, cochlear implant, systemic steroid use, sickle cell disease, congenital or acquired asplenia, HIV infection, chronic renal failure, nephritic syndrome or kidney disease with dialysis, bone-marrow or organ transplant, diseases associated with treatment with immunosuppressive drugs or radiation therapy, including malignant neoplasms, leukemia, lymphoma, and Hodgkin disease (3,4).
‡Day program patients were treated in Unit 1 during the day and returned home to stay overnight with their families.

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