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Transmission of Bordetella holmesii during pertussis outbreak, Japan.

Kamiya H, Otsuka N, Ando Y, Odaira F, Yoshino S, Kawano K, Takahashi H, Nishida T, Hidaka Y, Toyoizumi-Ajisaka H, Shibayama K, Kamachi K, Sunagawa T, Taniguchi K, Okabe N - Emerging Infect. Dis. (2012)

Bottom Line: Six patients were infected; 4 patients were students and a teacher at the same junior high school.Epidemiologic links were found between 5 patients.B. holmesii may have been transmitted from person to person.

View Article: PubMed Central - PubMed

Affiliation: National Institute of Infectious Diseases, Tokyo, Japan.

ABSTRACT
We describe the epidemiology of a pertussis outbreak in Japan in 2010-2011 and Bordetella holmesii transmission. Six patients were infected; 4 patients were students and a teacher at the same junior high school. Epidemiologic links were found between 5 patients. B. holmesii may have been transmitted from person to person.

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Related in: MedlinePlus

Epidemic curve of a pertussis outbreak, September 2010–April 2011, Japan. A) Suspected cases of pertussis. B) Laboratory-confirmed cases of Bordetella pertussis and B. holmesii infection. *As of September 20–26, 2010.
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Figure 1: Epidemic curve of a pertussis outbreak, September 2010–April 2011, Japan. A) Suspected cases of pertussis. B) Laboratory-confirmed cases of Bordetella pertussis and B. holmesii infection. *As of September 20–26, 2010.

Mentions: During the pertussis outbreak, we identified 76 suspected pertussis cases. Among these suspected cases, 35 cases were confirmed by laboratory testing and involved persons 2–63 years of age (median age 13 years); 1 case occurred in a 2-year-old child, 14 in 6- to 12-year-old children, 14 in 13–15-year-old children, and 6 in persons >16 years of age. Despite pertussis vaccination rates in childhood of 82.3%−92.6%, most (80%) patients were students 6–12 and 13–15 years of age. Among the 35 confirmed case-patients, 29 and 6 patients showed B. pertussis and B. holmesii infection, respectively. Confirmed cases of B. holmesii infection were observed within the last half of the epidemic curve, i.e., weeks 1–12 of 2011 (Figure 1). There were no cases of co-infection with B. pertussis and B. holmesii.


Transmission of Bordetella holmesii during pertussis outbreak, Japan.

Kamiya H, Otsuka N, Ando Y, Odaira F, Yoshino S, Kawano K, Takahashi H, Nishida T, Hidaka Y, Toyoizumi-Ajisaka H, Shibayama K, Kamachi K, Sunagawa T, Taniguchi K, Okabe N - Emerging Infect. Dis. (2012)

Epidemic curve of a pertussis outbreak, September 2010–April 2011, Japan. A) Suspected cases of pertussis. B) Laboratory-confirmed cases of Bordetella pertussis and B. holmesii infection. *As of September 20–26, 2010.
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3376812&req=5

Figure 1: Epidemic curve of a pertussis outbreak, September 2010–April 2011, Japan. A) Suspected cases of pertussis. B) Laboratory-confirmed cases of Bordetella pertussis and B. holmesii infection. *As of September 20–26, 2010.
Mentions: During the pertussis outbreak, we identified 76 suspected pertussis cases. Among these suspected cases, 35 cases were confirmed by laboratory testing and involved persons 2–63 years of age (median age 13 years); 1 case occurred in a 2-year-old child, 14 in 6- to 12-year-old children, 14 in 13–15-year-old children, and 6 in persons >16 years of age. Despite pertussis vaccination rates in childhood of 82.3%−92.6%, most (80%) patients were students 6–12 and 13–15 years of age. Among the 35 confirmed case-patients, 29 and 6 patients showed B. pertussis and B. holmesii infection, respectively. Confirmed cases of B. holmesii infection were observed within the last half of the epidemic curve, i.e., weeks 1–12 of 2011 (Figure 1). There were no cases of co-infection with B. pertussis and B. holmesii.

Bottom Line: Six patients were infected; 4 patients were students and a teacher at the same junior high school.Epidemiologic links were found between 5 patients.B. holmesii may have been transmitted from person to person.

View Article: PubMed Central - PubMed

Affiliation: National Institute of Infectious Diseases, Tokyo, Japan.

ABSTRACT
We describe the epidemiology of a pertussis outbreak in Japan in 2010-2011 and Bordetella holmesii transmission. Six patients were infected; 4 patients were students and a teacher at the same junior high school. Epidemiologic links were found between 5 patients. B. holmesii may have been transmitted from person to person.

Show MeSH
Related in: MedlinePlus