<P> Passive immunity is the transfer of active humoral immunity in the form of ready - made antibodies . Passive immunity can occur naturally , when maternal antibodies are transferred to the fetus through the placenta , and it can also be induced artificially , when high levels of antibodies specific to a pathogen or toxin ( obtained from humans , horses , or other animals ) are transferred to non-immune persons through blood products that contain antibodies , such as in immunoglobulin therapy or antiserum therapy . Passive immunization is used when there is a high risk of infection and insufficient time for the body to develop its own immune response , or to reduce the symptoms of ongoing or immunosuppressive diseases . Passive immunization can be provided when people can not synthesize antibodies , and when they have been exposed to a disease that they do not have immunity against . </P>
<P> Passive immunity is the transfer of active humoral immunity in the form of ready - made antibodies . Passive immunity can occur naturally , when maternal antibodies are transferred to the fetus through the placenta , and it can also be induced artificially , when high levels of antibodies specific to a pathogen or toxin ( obtained from humans , horses , or other animals ) are transferred to non-immune persons through blood products that contain antibodies , such as in immunoglobulin therapy or antiserum therapy . Passive immunization is used when there is a high risk of infection and insufficient time for the body to develop its own immune response , or to reduce the symptoms of ongoing or immunosuppressive diseases . Passive immunization can be provided when people can not synthesize antibodies , and when they have been exposed to a disease that they do not have immunity against . </P>
the type of immunity developed through immunization is called
the type of immunity developed through immunization is called
Passive immunization
Passive immunization