Volume 9, Number 10, October 2003

Mass Antibiotic Treatment for Group A Streptococcus Outbreaks in Two Long-Term Care Facilities

Andrea Smith,*† Aimin Li,‡ Ornella Tolomeo,* Gregory J. Tyrell,§† Frances Jamieson,‡ and David Fisman*¶
*City of Hamilton Social and Public Health Services Department, Hamilton, Ontario, Canada; †University of Alberta, Edmonton, Alberta; ‡Canada Ontario Ministry of Health and Long-Term Care, Toronto, Ontario, Canada; §Provincial Laboratory for Public Health, Edmonton, Alberta, Canada; and ¶McMaster University, Hamilton, Ontario, Canada

Figure 4. Molecular epidemiology of group A streptococcal strains in outbreak 2. Pulsed-field gel electrophoresis, demonstrating relatedness of group A streptococcal isolates from facility staff and residents. Lanes 1 and 7 contain an ATCC quality control strain. Solid arrows denote identical strains from two of the three persons in whom fatal invasive group A streptococcal infection developed; the third person with invasive disease had an electrophoretically identical strain (not shown). Hollow arrows denote identical strains from persons with asymptomatic colonization with group A streptococcus. Brackets denote duplicate strains from the same person; asterisk denotes staff member.

EID Home | Top of Page | Ahead-of-Print | Past Issues | Suggested Citation | EID Search | Contact Us | Accessibility | Privacy Policy Notice | CDC Home | CDC Search | Health Topics A-Z

This page last reviewed September 10, 2003

Emerging Infectious Diseases Journal
National Center for Infectious Diseases
Centers for Disease Control and Prevention