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World TB Day --- March 24, 2007
World TB Day is observed on March 24 each year and commemorates the date in 1882 when Dr. Robert Koch
announced the discovery of Mycobacterium
tuberculosis, the bacterium that causes tuberculosis (TB). Worldwide, TB remains one of
the leading causes of death from infectious disease. An estimated 2 billion persons (i.e., one third of the world's population)
are infected with M. tuberculosis. Each year, approximately 9 million persons become ill from TB; of these, nearly 2 million
die from the disease. World TB Day provides an opportunity for TB programs, nongovernmental organizations, and
other partners to describe problems and solutions related to the TB pandemic and to support worldwide
TB-control activities. The theme for this year's observance is "TB Elimination: Now is the Time!"
After approximately 30 years of decline, the number of TB cases reported in the United States increased 20% during
1985--1992. This led to a renewed emphasis on TB control and prevention during the 1990s. However,
although the 2006 TB rate is the lowest recorded in the United States since national reporting began in 1953, the average annual decline has slowed
since 2000. In addition, multidrug-resistant TB remains a threat, extensively drug-resistant TB has become an emerging threat,
and persons of racial/ethnic minority populations and foreign-born persons continue to account for a disproportionate number
of TB cases.
CDC and its partners are committed to eliminating TB in the United States. In many states, education and
awareness programs convened by local TB coalitions will take place in commemoration of World TB Day. Additional information
about World TB Day and CDC TB-elimination activities is available at
http://www.cdc.gov/nchstp/tb/worldtbday.
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Health and Human Services.References to non-CDC sites on the Internet are
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Department of Health and Human Services. CDC is not responsible for the content
of pages found at these sites. URL addresses listed in MMWR were current as of
the date of publication.
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