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Scientists at the University of Wisconsin-Madison revealed the causes of the spread of tuberculosis worldwide
. Scientists have studied the genetic factor of tuberculosis and its spread in the world. "There are seven main types of tuberculosis in the world, caused by mycobacterium tuberculosis, which, according to genetic studies, came from Africa, the home of the disease that has existed for tens of thousands of years."
Researchers analyzed 550 bacterial samples of tuberculosis in modern humans living in Africa and Eurasia. Comparisons between the genes of these bacteria revealed how genes from different strains of TB are linked to each other and where the disease has emerged.
Scientists confirmed that the origin of these carrier strains was only represented by a typical strain years, and spawned by other strains of the disease, which is among the 10 deadly diseases on the planet.
Seven species of tuberculosis bacteria have spread throughout the world, three have disappeared and have not adapted to the new environment and have remained four to date due to their large capacity for adaptation.
And spread throughout the world in the first century AD when the Romans conquered the Mediterranean.
Roman military campaigns led to the transmission of the disease to people who were not exposed to it in their lifetime. The infection involved not only soldiers, but also combat camps and living conditions in the camps where civilians participated. As a result, tuberculosis has passed among all the nations that have been mixed with the Romans.
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