What is Multiple-Drug Resistance TB (MDR TB)?
If TB patients fail to take their medications as directed, the TB bacteria in their body may become drug-resistant. Once bacteria have become resistant to a certain medication, it will no longer work to kill them. This means the person will continue to be sick and spread the TB bacteria. If you keep treating these resistant bacteria with the same medicationss after they become resistant, they will keep growing. But, if you use another medication to which they are not resistant, then they can be killed. For this reason, TB is treated with more than one type of medication at a time.
