Incidence Statistics for Types of Flu

The information below shows a list of types of Flu, with information as to the annual incidence of each of these types of Flu. Estimates of the people affected each year are calculated based on the available statistics.

Incidence Statistics for Types of Flu

Disease	Incidence Estimate	US people estimate	Statistic Used for Calculation
Influenza A	N/A	N/A	No information
Influenza B	N/A	N/A	No information
Influenza C	N/A	N/A	No information
Hong Kong influenza	N/A	N/A	No information
Russian influenza	N/A	N/A	No information
Spanish influenza	N/A	N/A	No information
Asian influenza	N/A	N/A	No information
Swine flu	N/A	N/A	No information
Avian flu	N/A	N/A	No information
Orthomyxovirus-related Cold	N/A	N/A	No information
Type A Influenza	N/A	N/A	No information
Bird flu (avian influenza)	N/A	N/A	No information
Type A influenza subtype H1N1	N/A	N/A	No information
Type A influenza subtype H1N2	N/A	N/A	No information
Type A influenza subtype H3N2	N/A	N/A	No information
Type A influenza subtype H2N2	N/A	N/A	No information
Type A influenza subtype H5N1	N/A	N/A	No information
Type A influenza subtype H7N2	N/A	N/A	No information
Type A influenza subtype H7N7	N/A	N/A	No information
Type A influenza subtype H7N3	N/A	N/A	No information
Type A influenza subtype H9N2	N/A	N/A	No information
Type A influenza subtype H10N7	N/A	N/A	No information
Type A influenza subtype H1	N/A	N/A	No information
Type B Influenza	N/A	N/A	No information
Type C Influenza	N/A	N/A	No information
Type A influenza subtype H5	N/A	N/A	No information
Type A influenza subtype H7	N/A	N/A	No information
Type A influenza subtype H9	N/A	N/A	No information
Hemophilus influenzae B	approx 1 in 1,042,145 or 0.00% or 260 people in USA	260	261 annual cases of invasive HIB in USA 1999 (MMWR 1999)
Intestinal Flu	N/A	N/A	No information
Cold & Flu	N/A	N/A	No information
H1N1 Flu	N/A	N/A	No information

Incidence Statistics for Flu

Incidence of Flu:

36 per 100 (NHIS96); 35 million annually up to 50 million annually (NIAID/CDC); 10-20% yearly (NIAID)

Incidence Rate:

approx 1 in 3 or 36.00% or 97.9 million people in USA [about data]

Incidence statistics about Flu:

The following statistics relate to the incidence of Flu:

3,665 confirmed cases influenza occurred in Australia 2002 (Yohannes K, Roche P, Blumer C et al. 2004, Australia’s Health 2004, AIHW)
18.6 confirmed new cases per 100,000 population of influenza in Australia 2002 (Yohannes K, Roche P, Blumer C et al. 2004, Australia’s Health 2004, AIHW)

Types of Flu

For more information about types of Flu, refer to our section on types of Flu.

About incidence:

The medical term 'incidence' of Flu usually refers to the annual diagnosis rate of new cases of Flu. Prevalence is a different medical disease measure that refers to the estimated population of people who are managing Flu at any given time (e.g. prevalence includes people who have had a medical condition for a long time). For more information on prevalence and incidence statistics, see about prevalence and incidence statistics.

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