|
Conjugate Vaccine
A conjugate vaccine is a type of subunit vaccine which combines a weak antigen with a strong antigen as a carrier so that the immune system has a stronger response to the weak antigen. Vaccines are used to prevent diseases by invoking an immune response to an antigen, part of a bacterium or virus that the immune system recognizes. This is usually accomplished with an attenuated or dead version of a pathogenic bacterium or virus in the vaccine, so that the immune system can recognize the antigen later in life. Most vaccines contain a single antigen that the body will recognize. However, the antigen of some pathogens does not elicit a strong response from the immune system, so a vaccination against this weak antigen would not protect the person later in life. In this case, a conjugate vaccine is used in order to invoke an immune system response against the weak antigen. In a conjugate vaccine, the weak antigen is covalently attached to a strong antigen, thereby eliciting a stronge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haemophilus Influenzae 01
''Haemophilus'' is a genus of Gram-negative, pleomorphism (microbiology), pleomorphic, coccobacillus, coccobacilli bacteria belonging to the family Pasteurellaceae. While ''Haemophilus'' bacteria are typically small coccobacilli, they are categorized as pleomorphic bacteria because of the wide range of shapes they occasionally assume. These organisms inhabit the mucous membranes of the upper respiratory tract, mouth, vagina, and intestinal tract. The genus includes Commensalism, commensal organisms along with some significant pathogenic species such as ''Haemophilus influenzae, H. influenzae''—a cause of sepsis and bacterial meningitis in young children—and ''Haemophilus ducreyi, H. ducreyi'', the causative agent of chancroid. All members are either Aerobic organism, aerobic or Facultative anaerobic organism, facultatively anaerobic. This genus has been found to be part of the salivary microbiome. Metabolism Members of the genus ''Haemophilus'' will not grow on blood ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
