We conclude that only large postchiasmal lesions are likely to cause symptomatic homonymous field defects in MS, usually characterized by rapid recovery. Hemifield VEPs have a low sensitivity for the detection of postchiasmal as compared with prechiasmal abnormalities.
Alternate Titles: Bacille Calmette-GuÃ©rin vaccine, Bacillus Calmette-GuÃ©rin vaccine. BCG vaccine, vaccine against tuberculosis. The BCG vaccine is prepared from a weakened strain of Mycobacterium bovis, a bacteria closely related to M. tuberculosis, which causes the disease.
BCG tuberculosis (TB) vaccine. The BCG vaccine protects against tuberculosis, which is also known as TB. TB is a serious infection which affects the lungs and sometimes other parts of the body such as the bones, joints and kidneys.It can also cause meningitis.Read more about tuberculosis (TB).he BCG vaccine is made from a weakened form of a bacterium closely related to human TB. Because the bacterium is weak, the vaccine does not cause any disease but it still triggers the immune system to protect against the disease, giving good immunity to people who receive it.