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They are vaccines that contain viruses that have been treated to make them too weak to make you sick. The word "attenuated" just means "weakened".
This type of live attenuated vaccine is what is approved for intra-nasal administration (nasal spray) of the flu vaccines in the US. The approved intra-muscular injection vaccine is made with totally inactivated ("dead") virus particles.
See related questions below.
What else can I help you with?
Is the immunization hpv an attenuated vaccine?
All HPV vaccines are recombinant. They are not live vaccines.
What is a vaccine that contains live weakened pathogens?
They are called live attenuated vaccines. Attenuated means weakened. The nasal mist flu vaccine is an example of a live attenuated vaccine. The vaccines for flu that are injected are made from pieces of viruses or "dead" viruses. See the related question below for more information on these two types of vaccines.
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)
What is attenuated flu vaccine?
Attenuated simply means "weakened". An attenuated flu vaccine refers to vaccines made with live viruses (so you get a good immune response), but they have been weakened chemically so that they are unable to give you the flu. There are two types of flu vaccines available in the US. What is called inactivated, inactive or "dead" vaccine and what is called "live", weakened/attenuated vaccine. The injectable vaccines (intradermal and intramuscular) are made with "dead" viruses and the nasal spray is made with "live" attenuated viruses.
Who thought of using attenuated organisms for vaccines and how is this important?
Attenuated vaccines are created by destabilizing the virulence of the strain while still keeping the organism alive. Attenuated vaccines were first developed by Albert Calmette and Camille Guerin in their efforts to use an immunization as a cure for Tuberculosis in 1906.
What type of vaccine falls into the innate immunity?
Most live attenuated vaccines (influenza vaccines in humans, infectious bronchitis and Newcastle disease vaccines in chickens are types that activate innate immunity responses.
Which vaccine contains weakened?
They are called attenuated vaccines. Attenuated means weakened, they do this usually with chemicals and then the attenuated viruses are not able to make you sick, but they are strong enough to trigger the immune response to provide immunity.An attenuated virus. Attenuated simply means weakened. For example, you will see references to this in regard to the flu vaccines. This is also abbreviated when talking about the flu vaccines as LAIV, Live Attenuated Influenza Vaccine.That is a good description of what a vaccine is, although some other substances also could be described similarly. The weakened or killed virus in a vaccine is non-threatening to most people. It can be a problem for infants under six months old, some children and adults with under-developed immune systems or who have immune system disorders.
What is la iv vaccines?
Live attenuated influenza vaccine (LAIV) is a type of influenza vaccine in the form of a nasal spray that used to be recommended to prevent influenza.
Is it true that 'possibility of reversion to virulence is of concern in live attenuated virus?
Yes, the possibility of reversion to virulence is a concern in live attenuated virus vaccines. Although these vaccines are weakened, there is a small chance that the virus could regain its virulence and cause disease. To mitigate this risk, vaccine developers carefully design and monitor the attenuation process.
What are substances made from dead viruses?
Vaccines for the prevention of the specific viral infection can be made with inactive "dead" viruses. They are also made with live, but attenuated (weakened), viruses. See more below about vaccines.
A suspension of a killed or live-attenuated microorganisms is referred to as?
A suspension of killed or live-attenuated microorganisms is referred to as a vaccine. Vaccines are used to stimulate the immune system to provide protection against specific pathogens by inducing an immune response without causing the disease.
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.
