BCG vaccine extensively used even in countries where efficacy against pulmonary tuberculosis is negligible. A number of possible reasons for the variable efficacy of BCG in different countries have been proposed. None have been proven, some have been disproved, and none can explain the lack of efficacy in both low-TB burden countries (US) and high-TB burden countries (India). The reasons for variable efficacy have been discussed at length in a WHO document on BCG. BCG has protective effects against some non-tuberculosis mycobacteria. BCG has been one of the most successful immunotherapies. BCG vaccine has been the "standard of care for patients with
Belarusian Railway BCG-1 24, 2012. Belarusian Railway BCG-1 The Belarusian Railways BCG-1, originally Belarusian Railways BKG-1 (БКГ : "Белорусско-Китайский Грузовой"), is a type of twin-unit, eight axle, (Bo'Bo')-(Bo'Bo'), high power mainline electric freight locomotive manufactured by CNR Datong Electric Locomotive for the Belarusian Railway. The locomotives are derived from the China Railways HXD2 locomotive type developed from the Alstom Prima locomotive platform. In April 2010 CNR Datong announced that it had obtained a 700million Yuan contract to supply 12 twin section electric locomotives to Belarus; the locomotives were to be used to increase haulage capacity from the 4700t to 5500t capacity of the