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COVID - Coggle Diagram
COVID
Why do we need two doses of the Covid vaccine?
The general reason on why we need two vaccines is:
Some vaccines need two shots to be most effective. In studies, Pfizer’s vaccine was 52% effective after the first shot and 95% after the second one.
We don’t know how effective a single shot for the vaccine would be in the long run or how long the
immunity
would last.
It’s also unclear how effective the vaccine is if you don’t follow the exact dosing timeline.
When a vaccine requires two shots, the first shot helps your body recognize the virus and gets your
immune system
ready, while the second shot strengthens that immune response. This makes your body more prepared to fight infection.
What happens if you don't get your second shot of the Covid vaccine?
The Pfizer Covid vaccine requires a 21 day length time between shots and 28 days for both Moderna and AstraZeneca. These are the most common Covid vaccines available. The bottom line is that you want your
immune system
to produce enough antibodies that if you’re exposed to a virus, your body can effectively fight it. Sometimes that means taking two vaccine doses. So, your
immune system
might not be able to fight the virus with only one dose of the vaccine.
What does the first shot of the Covid vaccine do?
The first shot helps your body recognize the virus and gets your
immune system
ready to fight the virus.
What does the second shot of the Covid vaccine do?
The second shot strengthens that
immune
response. This makes your body more prepared to fight infection. It makes the vaccine as effective as possible with treating the virus.
What is the Covid vaccine?
COVID-19 vaccines help our bodies develop
immunity
to the virus that causes COVID-19 without us having to get the illness.
Different types of Covid vaccines
mRNA vaccines, protein subunit vaccines, and vector vaccines
mRNA vaccines contain material from the virus that causes COVID-19 that gives our
cells
instructions for how to make a harmless
protein
that is unique to the virus. After our
cells
make copies of the
protein
, they destroy the
genetic
material from the vaccine
Protein subunit vaccines include harmless
proteins
of the virus that cause COVID-19 instead of the entire germ. Once vaccinated, our
immune system
recognizes that the
proteins
don’t belong in the body and begins making
antibodies
. If we are ever infected in the future,
memory cells
will recognize and fight the virus.
Vector vaccines contains a weakened version of a live virus—a different virus than the one that causes COVID-19—that has
genetic material
from the virus that causes COVID-19 inserted in it (this is called a
viral vector
). Once the viral vector is inside our
cells
, the
genetic material
gives cells instructions to make a
protein
that is unique to the virus that causes COVID-19.
Sources:
https://docs.google.com/document/d/1YGjq4XdYc-v1_UQYEeYtiAFD8yPw5odfEMVtk0DDQTo/edit