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.
There are two different types of pneumococcal vaccine. One that protects adults against 23 strains of Streptococcus pneumonia bacteria is called pneumococcal polysaccharide vaccine (PPSV23), and it is marketed under the brand name Pneumovax.PPSV23 is made using dead bacteria. The dead germs cannot make you sick.dults who are recommended to get both the PPSV23 and the PCV13 vaccines should get the PCV13 vaccine first, followed by PPSV23 8 weeks later. If an adult was already vaccinated with PPSV23, he or she should receive the PCV13 vaccine a year or more later. 1 | 2.