From the Telenko (correct spelling) link:
TB SCREENING, LTBI AND VACCINATION
While active TB can be found by chest X-rays, screening for latent TB infection (LTBI) can only be found by two tests that screen blood and skin. The problem for screening these illegal alien immigrants is, strangely enough, that they are from countries with wide scale TB vaccinations.
The TB vaccine is called BCG (Bacille Calmette-Guérin). It is considered controversial because it isn’t “very effective” in countries with a low incidence of TB, like the USA. However, that isn’t the biggest reason BCG isn’t usually given in the United States. Mass inoculation with BCG would remove both latent TB skin tests from the public health arsenal and increase the false positive rates from blood tests because those treated with BCG vaccinations all have the anti-bodies that current skin and blood tests look for. The public health system would lose most of its ability to track the spread of latent TB in the American population. The current public health paradigm of track, isolate and treat TB is about to come to a horrible end for the American public health system.
... here are ten FDA approved antibiotic drugs for treatment of TB with a core of four drugs listed by the CDC as the “preferred treatment regimes” which lasts 6-to-9 months. Those core treatment regimen drugs include:
• isoniazid (INH)
• rifampin (RIF)
• ethambutol (EMB)
• pyrazinamide (PZA)
The reason for so many different drugs is that TB is developing resistance to antibiotic treatment.
... The six-to-nine month long TB antibiotic treatment regimes must be followed rigorously, and completed, or the LTBI and the active TB infected will breed more MDR and XDR TB strains.
So, the vaccine will probably save lives but render the skin test useless on the basis of false positives.
The reason the antibiotic treatment regime is often prematurely abandoned by the patient is because of frequent blood testing for liver function and because (from one commenter) it beats hell out of the liver -- sore and swollen.
People in towns and neighborhoods need to talk to the local government folks and discuss the possibility of implementing wide-scale vaccination programs, false positives be damned.
There will be talk of hysteria, over-reaction, tin-foil hats and such, but I can't help remembering (for anyone else who read it) The Last Centurion and what happened when country-wide vaccine programs were properly implemented, and what happened when they weren't. Yeah, it's fiction. So?