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.
A flu vaccine is the best way to protect kids from the flu and its complications. There are two types of flu vaccines -- one is given as a shot and the other as an inhaled nasal spray. The inhaled version of the flu vaccine has not been approved for use in children under 2 or for those with chronic medical conditions.