Research scientists say they have discovered a new drug that will help the fight against the disease tuberculosis（肺结核）. The substance is called R-two-zero-seven-nine-one-zero. Experts say it has been shown in animal experiments to clear tuberculosis infections two times faster than other medicines. Scientists have just begun to test the experimental drug in people.
The researchers described the drug in Science magazine.
Tuberculosis infects at least eight million people each year. It also is the second leading cause of death around the world. The disease kills two million to three million people each year. Only Acquired Immune Deficiency Syndrome kills more. Eleven million people are infected with both tuberculosis and the virus that causes AIDS.
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