Somalia
MDR-TB is widespread in Somalia, where 8.7% of newly discovered TB cases are resistant to Rifampicin and Isoniazid, in patients which were treated previously the share was 47%.Refugees from Somalia brought an until then unknown variant of MDR tuberculosis with them to Europe. A few number of cases in four different countries were considered by the European Centre for Disease Prevention and Control to pose no risk to the native population. Russian prisons
One of the so-called "hot-spots" of drug-resistant tuberculosis is within the Russian prison system. Infectious disease researchers Nachega & Chaisson report that 10% of the one million prisoners within the system have active TB. One of their studies found that 75% of newly diagnosed inmates with TB are resistant to at least one drug; 40% of new cases are multidrug-resistant. In 1997, TB accounted for almost half of all Russian prison deaths, and as Bobrik et al. point out in their public health study, the 90% reduction in TB incidence contributed to a consequential fall in the prisoner death rate in the years following 1997. Baussano et al. articulate that concerning statistics like these are especially worrisome because spikes in TB incidence in prisons are linked to corresponding outbreaks in surrounding communities. Additionally, rising rates of incarceration, especially in Central Asian and Eastern European countries like Russia, have been correlated with higher TB rates in civilian populations. Even as the DOTS program is expanded throughout Russian prisons, researchers such as Shin et al.
Medicines recommended are the following:

Group A: Fluoroquinolones (levofloxacin,moxifloxicin), linezolid, bedaquiline
Group B: clofazimine, cycloserine/terizidone
Group C: Other core second-line agents (ethambutol, delamanid, pyrazinamide, imipenem-cilastatin/meropenem, amikacin/streptomycin, ethionamide/prothionamide, p-aminosalicylic acid)For patients with RR-TB or MDR-TB, "not previously treated with second-line drugs and in whom resistance to fluoroquinolones and second-line injectable agents was excluded or is considered highly unlikely, a shorter MDR-TB regimen of 9–12 months may be used instead of the longer regimens (conditional recommendation, very low certainty in the evidence). "In general, resistance to one drug within a class means resistance to all drugs within that class, but a notable exception is rifabutin: Rifampicin-resistance does not always mean rifabutin-resistance, and the laboratory should be asked to test for it. It is possible to use only one drug within each drug class. If it is difficult finding five drugs to treat then the clinician can request that high-level INH-resistance be looked for. If the strain has only low-level INH-resistance (resistance at 0.2 mg/L INH, but sensitive at 1.0 mg/L INH), then high dose INH can be used as part of the regimen. When counting drugs, PZA and interferon count as zero; that is to say, when adding PZA to a four-drug regimen, another drug must be chosen to make five. It is not possible to use more than one injectable (STM, capreomycin or amikacin), because the toxic effect of these drugs is additive: If possible, the aminoglycoside should be given daily for a minimum of three months (and perhaps thrice weekly thereafter).