Approval of the world's first nasal corona vaccine: Made
The Government of India has approved the world's first
nasal corona vaccine. Hyderabad-based Bharat Biotech, which manufactures
Covaxin, has developed it in collaboration with the Washington University
School of Medicine (WUSM). This vaccine taken from the nose can be applied as a
booster dose.
First of all, the nasal vaccine will be made available
in private hospitals, for which people will have to pay. According to the news
agency, it has been included in the Corona vaccination program from today
itself. This nasal vaccine of Bharat Biotech has been named iNCOVACC. Earlier
it was named BBV154. It will be delivered to the body through the nose.
Its special thing is that it blocks both infection and
transmission of corona as soon as it enters the body. This vaccine does not
require injection, so there is no risk of injury. Also, healthcare workers will
not need special training.
What is nasal vaccine?
At present, we are being vaccinated through injection
into the muscles. This vaccine is called intramuscular vaccine. A nasal vaccine
is one that is given through the nose. Because it is given through the nose, it
is called an intranasal vaccine. That is, it does not need to be given by
injection, nor is it administered like an oral vaccine. It's kind of like a
nasal spray.
How does the nasal vaccine work?
Many microbes, including the coronavirus, enter the
body through mucosa (the moist, sticky substance that lines the nose, mouth,
lungs, and digestive tract). The nasal vaccine produces an immune response
directly in the mucosa itself.
That is, the nasal vaccine raises soldiers to fight
from where the virus infiltrates the body. The nasal vaccine causes your body
to produce immunoglobulin A (igA). IgA is believed to be more effective in
preventing infection in the early stages. It prevents infection as well as
prevents transmission.
How different is it from other vaccines?
So far 8 vaccines have been approved in the country.
These are all intramuscular vaccines, that is, they are given through
injection. Whereas, iNCOVACC is an intranasal vaccine. After getting its
approval from the government, it has now become the country's first intranasal
vaccine. So far, Sputnik, Covishield and Covaxin are being installed in the
country. All these three vaccines are double dose vaccines. iNCOVACC will be
given only once.
Only one dose of nasal vaccine is effective
At present, two doses of the vaccine being used in
India are being given. The vaccinated person is considered safe 14 days after
the second dose. In such a situation, the nasal vaccine starts showing its
effect within 14 days.
Effective nasal dosage will not only protect against
corona virus, but will also prevent the spread of the disease. Even mild
symptoms will not be seen in the patient. The virus will also not be able to
harm other parts of the body.
This is a single dose vaccine, due to which tracking is
easy. Its side effects are also less as compared to intramuscular vaccine.
Another big advantage of this is that there will be less waste of needles and
syringes.
Vaccine will be given as booster dose
Intranasal vaccine will be given as booster dose to
those taking vaccines like Covaxin and Covishield. Although it can also be used
as a primary vaccine. Bharat Biotech's Managing Director and Chairman Dr.
Krishna Ella had said some time ago that like polio, 4 drops of this vaccine is
also enough. Two drops will be put in both the nostrils.
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