Skip directly to site content Skip directly to page options Skip directly to A-Z link Skip directly to A-Z link Skip directly to A-Z link
Volume 25, Number 3—March 2019
Research

Increased Risk for Invasive Group A Streptococcus Disease for Household Contacts of Scarlet Fever Cases, England, 2011–2016

Vicky WattsComments to Author , Sooria Balasegaram, Colin S. Brown, Suzanna Mathew, Rachel Mearkle, Derren Ready, Vanessa Saliba, and Theresa Lamagni
Author affiliations: Public Health England, Liverpool, UK (V. Watts); Public Health England, London, UK (S. Balasegaram, C.S. Brown, D. Reddy, V. Saliba, T. Lamagni); Public Health England, Leeds, UK (S. Mathew); Public Health England, Chilton, UK (R. Mearkle)

Main Article

Table 2

Risk for iGAS infection among household contacts of scarlet fever case-patients <10 years of age by year compared with background iGAS incidence, England, 2011–2016*

Year No. scarlet fever cases Estimated no. contacts No. iGAS cases in contacts† Attack rate/100,000 person-years (95% CI) Background iGAS incidence/100,000 person-years Rate ratio (95% CI)
2011
3,128
8,929
0
0.0 (0.0–251.5)
2.29
NA
2012
4,632
13,073
0
0.0 (0.0–171.8)
2.35
NA
2013
5,204
14,778
0
0.0 (0.0–152.0)
2.99
NA
2014
16,394
47,015
3
38.8 (8.0–113.5)
2.29
16.9 (5.5–52.6)
2015
18,022
51,454
3
35.5 (7.3–103.7)
3.48
10.2 (3.3–31.7)
2016
18,811
54,435
5
55.9 (18.2–130.5)
3.91
14.3 (5.9–34.7)
Total 66,191 189,684 11 35.3 (17.6–63.2) 2.89 12.2 (6.7–22.1)

*iGAS, invasive group A Streptococcus infection; NA, not applicable.
†During the 60 days after onset of scarlet fever in the household.

Main Article

Page created: February 19, 2019
Page updated: February 19, 2019
Page reviewed: February 19, 2019
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.
file_external