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1.-60% of the world’s cases of tuberculosis occur in the countries of India, Indonesia, China, Nigeria, Pakistan and South Africa.
Tuberculosis during infancy is very difficult to diagnose because the symptoms are usually taken as a common cold or in other cases do not develop symptoms that indicate that the child is infected.
In HIV-infected people, tuberculosis is the leading cause of death. Approximately 40% die from complications arising from such infection.
4.-The disease has been claiming fewer victims between 2000 and 2016, as it managed to reduce deaths by up to 25%. The only region where a strategy to eradicate the infection has not yet been adapted is Africa.
In 2016, the 30 countries with the most cases of tuberculosis accounted for 87% of all cases worldwide. In Asia alone, 61% of cases were reported.
People infected with multidrug-resistant tuberculosis, if they do not receive adequate treatment, can develop ultra-resistant tuberculosis. The latter is more dangerous because fewer drugs are able to respond to treatment.
7.- If a person who is infected with tuberculosis is not treated, either because they do not know what they have or because they do not have access to treatment, they can infect between 10 and 15 people a year.
8.-Those who are HIV-positive are at a higher risk of contracting tuberculosis. This is because their defenses are not as strong as those of healthy people.
Not all people who become infected with the bacteria go on to develop the disease. It is estimated that 90% of people do not develop tuberculosis because their immune system is able to destroy the bacteria.
For a person to become infected, it is said that a very long period of contact is required for there to be a real risk of contagion.