Production Of Antibodies For Use In Laboratory Testing

Immunochemical methods use antigens and antibodies as tools to detect microorganisms. Antigens are foreign substances, usually high-molecular-weight proteins or carbohydrates, that elicit the production of other proteins, called antibodies, in a human or animal host (see Chapter 3). Antibodies attach to the antigens and aid the host in removing the infectious agent (see Chapters 3 and 10). Antigens may be part of the physical structure of the pathogen, such as the bacterial cell wall, or they may be a chemical produced and released by the pathogen, such as an enzyme or toxin; each antigen is also called an epitope. Figure 9-1 shows the multiple epitopes of group A Streptococcus (Streptococcus pyogenes).

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Bacterial Vaginosis Facts

Bacterial Vaginosis Facts

This fact sheet is designed to provide you with information on Bacterial Vaginosis. Bacterial vaginosis is an abnormal vaginal condition that is characterized by vaginal discharge and results from an overgrowth of atypical bacteria in the vagina.

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