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Updated February 2019

Here are some basic facts and figures about whooping cough from official sources. To get more detail or know my comments and interpretations just follow the indicated links.

 UK In the 1940s, before whooping cough vaccine was available there were over 100,000 cases in the UK every year and the mortality rate was about 1%. After immunization became commonplace the numbers fell dramatically but rose again in the 1970s and 1980s as the vaccine uptake dropped to 40%. Now uptake is about 94% and incidence is once again low especially in younger children. Case numbers have apparently  risen in teens and adults over the last 20 years and make up half to three quarters of cases but this is mainly a result of more cases being diagnosed and confirmed because of increased awareness and easier testing. Peaks tend to occur every 4 to 5 years.

In the United States in 2017 there were 18,975 cases, in 2014 there were 32,971 cases. In 2012 there were over 41,000 reported cases. This is the highest number for about 60 years. There were 18 reported deaths. In 1999 there were 7,288 cases. In 2000 there were 7,867. The CDC has an excellent website with up to date information and recommendations on the treatment and prevention of whooping cough (pertussis). USA CDC site.

In England and Wales about 5 deaths per year are recorded. In 2004 there were 504 notifications. In 2011 there were over 1000 notifications. The increase is probably due to increased awareness and the ability recently developed testing methods. In 2012 there were 9741 laboratory confirmed cases with 14 deaths. See news

World Health Organization.
What they say about whooping cough. WHO on whooping cough

Bordetella pertussis genome
If you want to get really intimate with Bordetella pertussis visit The Sanger Centre and download the whole DNA sequence. Pertussis genome

It is my opinion, based on my research, that the actual number of cases that occur is at least 10 times the number reported.This is based on the fact that I have studied every case of whooping cough that I have detected in the community in which I work since 1977. This is in Keyworth, England, a community of 11,000. In England communities like this are often served by a single medical practice, making it possible to study such things accurately.

Details of the Keyworth Whooping Cough Study 

UK Health Protection Agency whooping cough information (excellent resource for incidence etc)