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What is active acquired immunity?
Active acquired immunity is a type of immunity that results from the body's own immune system being activated to produce antibodies in response to exposure to a pathogen, such as through vaccination or recovering from an infection. This type of immunity provides long-lasting protection against future exposures to the same pathogen.
What is meant by the term attenuated pathogen?
An attenuated pathogen is a weakened form of a disease-causing microorganism that is used in vaccines to stimulate an immune response without causing the full-blown disease. Attenuated pathogens are less virulent than their wild-type counterparts, reducing the risk of causing illness in vaccinated individuals while still eliciting a protective immune response.
What is an avirulent pathogen?
An avirulent pathogen is a pathogen that is unable to cause disease in its host. This may be due to mutations that have reduced its ability to infect or harm the host, making it less pathogenic compared to a virulent pathogen.
What does not contribute to the virulence of a pathogen?
There are infinitely many things that do not contribute to the virulence of a pathogen. Elvis does not contribute to the virulence of a pathogen.
What is the difference between an antigen and pathogen?
An antigen is a substance that can trigger an immune response in the body, such as proteins on the surface of bacteria or viruses. A pathogen, on the other hand, is a type of antigen that can cause disease in the host organism by invading and damaging tissues. Not all antigens are pathogens, but all pathogens are antigens.
