Overall Trend
  • Influenza is a vaccine-preventable respiratory infection that was among the top five most frequently reported infectious diseases in Chatham-Kent in 2018. 
  • In 2018, there were 102 reported cases of Influenza among Chatham-Kent residents, which accounted for 82% of all reported vaccine-preventable diseases and 18% of all reported infectious diseases.
  • The incidence rate was 73.6 (58.8, 88.3) per 100,000 which was significantly lower than the rate of 125.1 (123.3, 126.9) per 100,000 for Ontario.
  • The incidence rate for Chatham-Kent in 2018 was significantly higher when compared to the previous 5-year average.
  • Over time, rates provincially and locally have fluctuated with rates in Chatham-Kent generally lower than the province overall. 
Age-standardized rate of Influenza (calendar year), Chatham-Kent and Ontario, 2009-2018
Age-standardized rate of Influenza (calendar year), Chatham-Kent and Ontario, 2009-2018
By Age Group
  • Those aged 65 and older experienced significantly higher rates compared to younger age groups. 
  • In Chatham-Kent, those under the age of 15 and those aged 45 and older experienced significantly lower rates compared to Ontarians of the same age groups.
  • Of the 389 reported cases in Chatham-Kent from 2014 to 2018, 57.6% were in the 65 and older age groups. 
Incidence rate of Influenza, by age, Chatham-Kent and Ontario, 2014-2018 (combined)
Incidence rate of Influenza, by age, Chatham-Kent and Ontario, 2014-2018 (combined)
By Sex
  • Females experienced significantly higher rates compared to males.
  • Rates among Chatham-Kent males and females were significantly lower than provincial rates. 
  • Of the 389 reported cases in Chatham-Kent from 2014 to 2018, 60% were among females.
Incidence rate of Influenza, by sex, Chatham-Kent and Ontario, 2014-2018 (combined)
Incidence rate of Influenza, by sex, Chatham-Kent and Ontario, 2014-2018 (combined)