Prevalence and Incidence of Respiratory diphtheria
Incidence (annual) of Respiratory diphtheria:
Approximately 0.001 per 100,000 in USA (DBMD) ... see also overview of Respiratory diphtheria.
approx 1 in 100,000,000 or 0.00% or 2 people in USA [Source statistic for calcuation: "Approximately 0.001 per 100,000 in USA (DBMD)" -- see also general information about data sources]
Incidence extrapolations for USA for Respiratory diphtheria:
2 per year,
0 per month,
0 per week,
0 per day,
0 per hour,
0 per minute,
0 per second.
[Source statistic for calculation: "Approximately 0.001 per 100,000 in USA (DBMD)" -- see also general information about data sources]
Prevalance of Respiratory diphtheria:
Approximately 0.001 cases per 100,000
population in the U.S. since 1980; before the introduction
of vaccine in the 1920s incidence was 100-200 cases per 100,000
population. Diphtheria remains endemic in developing countries.
The countries of the former Soviet Union have reported >150,000
cases in an epidemic which began in 1990. (Source: excerpt from Diphtheria: DBMD)
About prevalence and incidence statistics:
The term 'prevalence' of Respiratory diphtheria usually refers to the estimated population
of people who are managing Respiratory diphtheria at any given time.
The term 'incidence' of Respiratory diphtheria refers to the annual diagnosis rate,
or the number of new cases of Respiratory diphtheria diagnosed each year.
Hence, these two statistics types can differ:
a short-lived disease like flu can have high annual incidence but low prevalence,
but a life-long disease like diabetes has a low annual incidence but high prevalence.
For more information see about prevalence and incidence statistics.