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Can antigenic proteins from certain pathogen be used for vaccines?
Yes, antigenic proteins from specific pathogens can be used to develop vaccines. These proteins can stimulate the immune system to produce antibodies and memory cells that can recognize and protect against future encounters with the pathogen, thereby providing immunity.
Vaccines are effective in preventing disease because they?
Vaccines are for the purpose of disease prevention. Vaccination is the process of introducing harmless pathogens to the body for a response trigger without an actual infection. Vaccines are either composed of: *dead pathogens *weakened pathogens *protiens from the target pathogens
Are antigen in combination with oligosaccharides?
Antigens combined with oligosaccharides can create glycoconjugate vaccines, which enhance immune response by targeting both the antigenic protein and the oligosaccharide component. This combination can lead to a more robust and effective immune response compared to traditional vaccines containing antigens alone. Glycoconjugate vaccines are commonly used to protect against bacterial infections caused by encapsulated pathogens.
Are made using weakened pathogens?
Vaccines.
What and which are the antigenic characeristics of mareks disease?
Current vaccines use a combination of vaccines consisting of HVT, attenuated MDV strain and gallid herpesvirus type 3. These are the antigens that are found and protect the chicken flock.
What is the relationship between vaccine and antigen shifting?
Vaccines are designed to stimulate the immune system to recognize and respond to specific antigens, which are molecules found on pathogens like viruses and bacteria. Antigen shifting, or antigenic drift/shift, occurs when these pathogens undergo genetic changes, altering their surface antigens and potentially evading immune responses. This relationship highlights the need for ongoing vaccine updates, as changes in antigens can diminish the effectiveness of existing vaccines, necessitating new formulations to maintain immunity in the population.
What are Weak pathogens injected into your blood called?
Some vaccines are really just a weakened form of the disease. These are called attenuated vaccines.
Does the influenza virus readily change the expressions of its genetic material?
RNA genome of influenza virus is segmented in to 7 pieces. It has the unique property of undergoing two types of genetic variation ie antigenic drift and antigenic shift. In antigenic drift the antigenic variations are minor where genetic recombination take place between strains of two similar species whereas in antigenic shift the recombination take place between strains of dissimilar species leading to major antigenic variations and hence seasonal epidemics.
Do vaccines destroy viruses only?
Vaccines do not destroy pathogens, they give the immune system antibodies so it can destroy a pathogen before it causes an infection. Vaccines do exist for some bacterial infections.
Definition of the conventional vaccines?
Conventional vaccines consist of whole pathogenic organisms, which may either be killed or live vaccines; the virulence of pathogens is greatly reduced in attenuated vaccines. This is classified into 2 categories :a)Live or attenuated vaccines; (eg : BCG vaccine)b)Inactivated vaccines (eg : Salk polio & Pertussisvaccines)
These are made from destroyed or fragmented pathogens containing a unique protein to trigger an immune response?
vaccines
The preparation of dead or weakened pathogens that causes the immune system to produce anitbodies?
vaccine
