How to prevent TB
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TB prevention consists of several main parts.
Stopping the transmission of TB from one adult to another
Firstly there is a need to stop the transmission of TB from one adult to another.
This is done through firstly, identifying people with active TB, and then curing them through the provision of drug treatment. With proper TB treatment someone with TB will very quickly not be infectious and so can no longer spread TB to others.
If someone is not on treatment, then precautions such as cough etiquette, must be taken to prevent TB spreading from one adult to another.
Anything which increases the number of people infected by each infectious person, such as ineffective treatment because of drug resistant TB, reduces the overall effect of the main TB prevention efforts. The presence of TB and HIV infection together also increases the number of people infected by each infectious person. As a result it is then more likely that globally the number of people developing active TB will increase rather than decrease.
Other TB prevention activities
There are several other TB prevention activities. This includes preventing people with latent TB from developing active, and infectious, TB disease.
TB infection control including the use of masks & respirators, which means preventing the transmission of TB in such settings as hospitals & prisons.
The pasteurization of milk also helps to prevent humans from getting bovine TB.
There is a vaccine for TB, but it makes only a small contribution to TB prevention. It does little to interrupt the transmission of TB among adults.