Immunity
plays a crucial role in the human body fighting against various diseases and
infections attacking it. If a human immune system is prepared to withstand a
disease it is said to be immune to the following disease. Immunity is sometimes
gained naturally by suffering and surviving the infection and conquering it. This is called naturally acquired immunity. With naturally
acquired immunity, one suffers the symptoms of the disease and also faces the
complications, which can be sometimes dangerous. Apart from naturally acquired
immunity, artificially acquired immunity can also be attained
by the human body through vaccines which is the easiest and the less risky way
to get immune against any disease.
Vaccine made from Biological Products
prevents diseases from occurring at the first place, rather than
attempting to cure it after getting it. In fact, it is cheaper to prevent a
disease than to treat it as in the course time you can face many complications
and also can spread it to people around you. Vaccines protect the human body against
infectious diseases caused by microbes and viruses by generating antibodies in
the body to fight against the infectious conditions.
Vaccines protect the human body against various
diseases like chickenpox, hepatitis A, hepatitis B, and Haemophilus influenzae
type b (Hib) etc.
Vaccines for hepatitis B:
Hepatitis B is a serious disease
that is killing about 4k to 5k of Americans every year and 1 million people around
the world. Hepatitis B is caused by infection with the hepatitis B virus,
termed as HBV. Persons with HBV infection have this virus circulating in their
blood, much like hepatitis C virus (HCV) and human immunodeficiency virus
(HIV). Persons who become infected with HBV either recover from their infection
in several months or they may remain chronically infected for most of their
lifetime. Also, majority of people in U.S.A go under liver transplant each
year, out of which 16% were done due to infections caused by hepatitis B.
Although most people do not show
symptoms of HBV infection, however blood tests can accurately identify the
conditions of the life taking disease. Adults who are chronically infected by HBV have a 15%
chance of dying from liver disease whereas young children or infants have a 25%
chance to die due to liver cancer. So, prevention of such infection is very
crucial as if once a person is infected, there are only few treatment options
available that are much expensive too.
Apparently, prevention is better
than cure. Vaccines prove to be a life saving option for the persons suffering
from HBV. There are about 15
different types of Hepatitis B vaccines available today around the world.
The first Hepatitis B vaccine was
developed in 1981. It was derived from donated human plasma and was known as PDV (Plasma Derived Vaccine). It is
prepared from particles of HBsAg obtained from human plasma, which is purified thus
delivers 95% pure Biological Products.
These vaccines are subjected to inactivation with formalin and heat and are
adjuvant with compounds of Aluminium. Plasma derived vaccine is presently
available for large-scale, public-sector purchase with valid medical
prescription. It is used widely used today as
the best preventive for HBV.
However, it comes with minor side
effects associated with it. The vaccine is though suitable for all persons,
some cases suffer through mild swelling, tenderness and redness at
the place of the injection. Other minor reactions such as malaise or fever
occur in less than 2% of individuals. However, more serious reactions are rare
has not been detected.
The World Health Organization has stated that plasma
derived vaccines (PDV’s) are safe and effective type of vaccines made from Biological Products
for all age groups.
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