Epidemiology of Tuberculosis

Epidemiology of Tuberculosis — Each year, 8.8 million people are infected with tuberculosis. WHO estimates that one third of the world population is infected with Mycobacterium tuberculosis, most cases are in sub-Saharan Africa and Asia.

We distinguish between countries with a high incidence (number of new cases in a period and in a given population) of those with low incidence. Geographical areas with a high incidence of TB, according to WHO estimates:

  • The African continent as a whole
  • The Asian continent as a whole, including the Near and Middle East
  • The countries of Central and South America
  • The countries of Central and Eastern Europe including the countries of the former USSR
  • In the European Union: Bulgaria, Estonia, Hungary, Latvia, Lithuania, Poland, Portugal, Romania.

Geographical areas with low incidence are mainly Western Europe and North America. In countries where the incidence is low (including France), there is a gradual decrease of tuberculosis despite a high incidence in certain populations and in certain geographic areas (especially in big cities). The homeless people in precarious situations, people from high-incidence countries and persons detained in prisons are among the most affected because of their living conditions (insecure or overcrowded housing) as well as the elderly (infected at a time when the incidence of tuberculosis was highest in France).

In France, the overall incidence of tuberculosis was 8.2 / 100 000 in 2009 (based on data Invs statement published in March 2011). These data show a decrease in the number of TB cases with 5,276 cases reported in 2009 against 5,758 cases in 2008.
As in previous years, the rate of return is higher in Ile-de-France (15.8 cases per 100 000) and Guyana (23.9 / 100 000).In Ile-de-France, the highest reporting rate in 2009 are observed in Seine-Saint-Denis (30.3 / 100 000) and Paris (23.4 / 100 000). However, they remain the lowest ever observed in these departments.

According to the World Health Organization, France is a country with low incidence of tuberculosis. WHO estimates that 9.4 million new cases of TB occurred in 2009

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