Figure 9.4.2: Pertussis by age
Rate of pertussis infections reported per 100,000 population by age, Middlesex-London, 2014 to 2018 annual average
![Figure 9.4.2: Pertussis by age Figure 9.4.2: Pertussis by age](https://communityhealthstats.healthunit.com/sites/default/files/styles/chart_image_large/public/charts/Figure%209.4.2%20Rate%20of%20pertussis%20by%20age.png?itok=DzqLLzVN)
Source:
Public Health Ontario Infectious Diseases Query: Middlesex-London Health Unit: Case counts and crude rates of reportable diseases by year. Toronto ON: Ontario Agency for Health Protection and Promotion; 2019 May 8 [cited 2019 May 13].Among Middlesex-London residents, the rate of pertussis infections was highest among infants less than one year of age, followed by children 1-9 years old. Pertussis rates generally decreased with increasing age.