Why are vaccines never given in the buttocks? Why are they only given in the arm, which is super painful?

inject

That may be everyone's childhood shadow.

Especially at the vaccination site

The scene can be said to be full of sounds~ one after another

But acupuncture is acupuncture

The vaccines you received as a child

More or less invisible

It helped everyone resist

The role of corresponding pathogens!

But ha!

Some friends developed

Will you not be infected with the virus after getting vaccinated?

Can vaccines themselves improve immunity?

Illusion

Illusions indicate

There is a misunderstanding in cognition!

Got vaccinated

Won’t you be infected with the virus?

Here we need to talk about the three major elements that must exist simultaneously for an infectious disease to spread , namely the source of infection , the route of transmission and the susceptible population .

When these three conditions exist at the same time, infectious diseases will become popular. The essence of vaccination is to protect susceptible people by enhancing their resistance to pathogens ! Virus infection is mainly caused by problems in the two links of the source of infection and the route of infection. Vaccination can only take care of yourself , not the source of infection and the route of infection!

If the source of infection and the route of infection remain unchanged, the virus will still invade! That makes it clear!

So it doesn't mean that you won't be infected with the virus after getting the vaccine, but after getting the vaccine, because the vaccine mechanism enhances immunity (this mechanism is ridiculous!), the impact and symptoms caused by the virus invading the body will be greatly reduced!

Do you see the little scar on your arm? That's the mark left by the BCG vaccination we received back then!

Another friend brought it up, why do we have to put a scar on the arm? Why not on the buttocks?

I have to mention here that most vaccines are suitable for intramuscular injection because there are important immune cells in the muscle tissue that can recognize antigens. The deltoid muscle on the arm has thin subcutaneous fat and few blood vessels, which is convenient for injection. It is also close to the axillary lymph nodes, which is conducive to antigen transfer!

How do vaccines improve human immunity?

Let’s first talk about how many types of common vaccines we have!
There are mainly two types of vaccines based on their functions. One is the most common preventive vaccine , and the other is a relatively rare therapeutic vaccine .
So let’s start with how preventive vaccines improve human immunity!

Generally speaking, preventive vaccines are only effective against specific pathogens . There are very few vaccines that can solve multiple problems with one shot. Specific diseases require specific vaccines!

This is why we had to get vaccinated every now and then when we were young!

The BCG vaccine we get injected into our arms is actually a live vaccine with its toxicity weakened .

After being inoculated into the body, the weakly toxic pathogen can stimulate our body's immune system to produce humoral immunity , allowing "B cells" to produce specific immunity to the pathogen .

The next time we encounter tuberculosis bacteria, our own immune system will be able to quickly recognize it and wake up our "B cells" to fight it, while also alleviating the symptoms of the disease.

So, getting some common preventive vaccines , the vaccines themselves will not help the body resist pathogens !

Everyone thinks that vaccines may help the human body eliminate pathogens by themselves, but in fact, vaccines are safe "sparring partners" for the immune system! They improve the body's immunity by exercising the body's own immune system .

The vaccine itself does not improve the body's immunity! This is a conceptual difference!

So what are therapeutic vaccines?

As the name suggests! When facing some rare diseases, the vaccine given after the body has already developed the disease is called a therapeutic vaccine!

For example, the therapeutic hepatitis B vaccine can activate certain T cells in the body to produce cellular immunity even after the patient develops hepatitis B symptoms.

These T cells can directly eliminate liver cells infected by the hepatitis B virus, thereby achieving the purpose of treatment!

So what is the difference between therapeutic vaccines and preventive vaccines?

To put it simply, preventive vaccines stimulate the body to produce humoral immunity through antigens, and reserve "warriors" to deal with specific pathogens in advance. Their targets are specific pathogens!

Therapeutic vaccines generally stimulate specific T cells in the body to produce cellular immunity through antigens. These T cells can directly eliminate cells infected with the virus. Their target of action is the infected cells!

In addition to vaccines

What other ways are there to enhance immunity?

(Hurry up and take out your notebook and copy the answer)

1. Emotional Health

We need to keep a balanced mentality, because long-term mental stress or excessive psychological pressure may quietly accelerate the death of white blood cells and potentially increase our risk of infection with various pathogens!

2. Eat a balanced diet

Ensure a balanced intake of dietary ingredients, maintain regular eating habits, avoid overeating, and often eat foods rich in trace elements such as selenium, zinc, and iron.

3. Exercise moderately

After exercise, our white blood cells may increase, and white blood cells are the barrier of our body's immune response. So hurry up and jump into the Compendium of Materia Medica at night!

4. Get enough sleep

Maintaining a good sleep can make us produce a sleep factor called muramic acid, which can increase our immune cells such as white blood cells to improve immunity. So it is really important to get a good night's sleep!