Serodiagnosis of Bacterial Diseases

serodiagnosis bacterial diseases
Serodiagnosis of bacterial diseases is of value only in specific circumstances. IgG antibody is long-lived, and its presence, although indicative of previous infection or immunization, gives little or no information on current bacterial infection. IgM antibody is usually produced within days to a few weeks after exposure to antigen, (more…)

Endotoxins and Exotoxins

endotoxins and exotoxins
Exotoxins are noxious proteins secreted by many bacteria. These toxins are often heat-labile and thus can be heat-inactivated for use as vaccines to prevent toxigenic immunity to bacteria disease. Many bacteria produce more than one protein exotoxin, making vaccine development more difficult. (more…)