BCG vaccine fine powder. Sometimes the powder is sealed with vacuum in a glass ampoule. Such a glass ampoule has to be opened slowly to prevent the airflow from blowing out the powder. Then the powder has to be diluted with saline water before injecting. The history of BCG is tied to that of smallpox. Jean Antoine Villemin first recognized bovine tuberculosis in 1854 and transmitted it, and Robert Koch first distinguished "Mycobacterium bovis" from "Mycobacterium tuberculosis". Following the success of vaccination in preventing smallpox, established during the 18th century, scientists thought to find a corollary in tuberculosis by drawing a parallel
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