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Volume 22, Number 4—April 2016
CME ACTIVITY - Research

Shiga Toxin 1–Producing Shigella sonnei Infections, California, United States, 2014–2015

Katherine LambaComments to Author , Jennifer A. Nelson, Akiko C. Kimura, Alyssa Poe, Joan Collins, Annie S. Kao, Laura Cruz, Gregory Inami, Julie Vaishampayan, Alvaro Garza, Vishnu Chaturvedi, and Duc Vugia
Author affiliations: California Department of Public Health, Richmond, California, USA (K. Lamba, A.C. Kimura, A. Poe, L. Cruz, G. Inami, V. Chaturvedi, D.J. Vugia); County of San Diego Health and Human Services Agency, San Diego, California, USA (J.A. Nelson, A.S. Kao); San Joaquin County Public Health Services, Stockton, California, USA (J. Collins, J. Vaishampayan, A. Garza)

Main Article

Table 2

Epidemiologic characteristics of Shiga toxin 1–producing Shigella sonnei cases by cluster, California, June 2014–April 2015

Characteristic No. (%)
Cluster 1, n = 25 Cluster 2, n = 31
Male sex
 12 (48.0)
 18 (58.1)
Age, y
  0–4 6 (24.0) 5 (16.1)
  5–9 6 (24.0) 0
  10–19 5 (20.0) 6 (19.4)
  20–29 1 (4.0) 3 (9.7)
  30–39 4 (16.0) 3 (9.7)
  40–49 0 2 (6.5)
  50–59 2 (8.0) 8 (25.8)
  ≥60
 1 (4.0)
 4 (12.9)
Ethnicity
  Hispanic 15 (60.0) 14 (45.2)
  Non-Hispanic 10 (40.0) 12 (38.7)
  Unknown
 0
 5 (16.1)
Case status
  Primary case 9 (36.0) 18 (64.3)*
  Secondary case
 16 (64.0)
 10 (35.7)*
Epidemiologic risk factors
  Epidemiologic link to Mexico 14 (56.0) 0
  Homeless 0 4 (12.9)
  Illicit drug use NA† 7 (22.6)
  Men who have sex with men‡ 0 0

*n = 28.
†Not available, data not collected in Cluster 1 investigation.
‡Denominator is men ≥18 y of age with data available: n = 2 for cluster 1 and n = 8 for cluster 2.

Main Article

Page created: March 15, 2016
Page updated: March 15, 2016
Page reviewed: March 15, 2016
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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