Passive Immunity
Thus far, all the acquired immunity we have discussed
has been active immunity. That is, the person’s own
body develops either antibodies or activated T cells in
response to invasion of the body by a foreign antigen.
However, temporary immunity can be achieved in a
person without injecting any antigen. This is done by
infusing antibodies, activated T cells, or both obtained
from the blood of someone else or from some other
animal that has been actively immunized against the
antigen.
Antibodies last in the body of the recipient for 2 to
3 weeks, and during that time, the person is protected
against the invading disease. Activated T cells last for
a few weeks if transfused from another person but
only for a few hours to a few days if transfused
from an animal. Such transfusion of antibodies or T
lymphocytes to confer immunity is called passive
immunity.
First I want to congratulate you for this amazing blog!
ReplyDeleteWe Are Pleased To Announce The Launch Of Mobile Movies in 3gp format, About Dubai, Bollywood Actor news Update And Many More.
.
To start just go tohttp://salmankhanznews.blogspot.com/
We hope you like it. Please send us any feedback and help us improve the sites further.
MBBS in Abroad for Indian students as it presents a cost-effective fee structure than medical colleges and universities in India. The fee structure for medical learning in a foreign country falls very low for the 5 to 6 years of the course, depending on the institute, but that’s just the crux of it, so let’s learn more about what’s essential about MBBS Abroad for Indian Medical Students.
ReplyDelete