What is the difference between XDR and MDR tuberculosis?

XDR and MDR tuberculosis are two types of tuberculosis (TB) that are resistant to multiple antibiotics. However, there are some key differences between the two.

XDR TB (extensively drug-resistant tuberculosis) is a type of TB that is resistant to at least four of the most commonly used TB drugs, including isoniazid, rifampin, pyrazinamide, and ethambutol. This makes XDR TB very difficult to treat, and it can be fatal if not treated properly.

MDR TB (multidrug-resistant tuberculosis) is a type of TB that is resistant to at least two of the most commonly used TB drugs, but not to all four. MDR TB is also difficult to treat, but it is not as resistant to antibiotics as XDR TB.

The main difference between XDR TB and MDR TB is the number of drugs that they are resistant to. XDR TB is resistant to at least four drugs, while MDR TB is resistant to at least two drugs. This makes XDR TB more difficult to treat and more likely to be fatal.

XDR TB is also more likely to spread from person to person than MDR TB. This is because XDR TB bacteria are more resistant to antibiotics, and they can therefore survive longer in the environment and be more easily transmitted from person to person.

Both XDR TB and MDR TB are serious public health threats. They are both difficult to treat and can be fatal. It is important to be aware of the symptoms of TB and to seek medical attention if you have any concerns about your health.