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About Vaccinations of the Four

Final update date March 31, 2021

From November 1, 2012, with a four-component vaccine that adds an inactivated Polio (*).
We carry out inoculation.
(Children who have already started inoculation with three kinds of mixture or single inactivated polio vaccine also have the remaining inoculation.
We can inoculate with four kinds of mixed vaccines. )

When you have you receive inoculation using "three kinds of mixed vaccination coupons", it is "four kinds of mixture" in Cooperating Medical Institutions
I'll rewrite it.

(*) About inactivated polio vaccine
Inactivated polio vaccine has been inoculated in a mixture of three and has not been completed in Polio inoculation is not completed.
Vaccine used by children.

Diphtheria, pertussis, tetanus, and Polio

(A) diphtheria (Diphtheria)
It is caused by droplet infection of diphtheria bacteria. Due to vaccination, the number of patients continues to be 0 per year.
However, even if diphtheria is infected, only about 10% of people will have symptoms, and the rest will be carriers without symptoms.
It can be transmitted through that person.
It is transmitted mainly to the throat, but also to the nose. Symptoms are high fever, sore throat, and cough of dog bark.
(A dog called Kenken is barking) or vomiting can cause a membrane called pseudomembrane to die of suffocation.
Care must be taken because toxins produced by the bacteria can cause myocardial damage and nerve paralysis two to three weeks after onset.
In the early 1990s, it became popular in Russia, where vaccination rates declined.
If you do not continue vaccination, it may become epidemic again in Japan.

Spray infection: Viruses and bacteria are wrapped in fine saliva and airway secretions due to coughing or sneezing.
To jump out into the air and infect humans within a range of about 1m.

(A) Pertusis
It is caused by droplet infection of pertussis.
The number of patients has decreased since the inoculation of the pertussis vaccine, but in 2007 a mass infection occurred at a university in Japan.
It was reported. Recently, puberty and adult pertussis, which are characterized by long coughs, have been seen, and have become a source of infection for infants.
Be aware that there are cases of serious illness.
Pertussis begins with a common cold-like symptom. Subsequently, the cough became severe, and the face was reddish and coughed continuously.
I'm coming. As you breathe in suddenly after the cough, you will hear a whistling sound.
I don't usually have a fever. Infants cannot breathe due to coughing, and their lips turn blue (cyanosis) and convulsions.
I sometimes get up. In baby/infant causes severe complications such as pneumonia and encephalopathy, which can lead to death.

(C) Tetanus
Tetanus bacteria are not transmitted from person to person, but when bacteria in the soil enter the human body through wounds.
I am infected. As the bacteria grow in the body, the toxins produced by the bacteria cause the mouth to not open or cramps.
It can be fatal. Half of the patients are infected with light wounds that are not noticed by themselves or others.
Because there are bacteria in the soil, there are always opportunities to get infected.

(E) Polio (Polio)
Polio used to be called "pediatric paralysis" and, in Japan, continued to be prevalent until the early 1960s.
At present, no natural infection has been reported in Japan due to Vaccinations has not reported any natural infections in Japan.
However, even in countries such as Pakistan and Afghanistan, outbreaks of Polio.
Because of this, there is a possibility that Japanese people may become infected with Polio in some areas.
Poliovirus is transmitted from person to person. The virus excreted in the stool of infected people enters through the mouth.
It grows in the throat or intestine and is excreted in the stool for several weeks.
Most people are asymptomatic when infected, but about 5% have cold-like symptoms such as sore throat and fever.
In addition, 1-2 percent of infected people develop aseptic meningitis, but relieve in 2 to 10 days.
However, about one in 1,000 to 2,000 infected people may become paralyzed and cause motor disorders as sequelae.
Sometimes they die from respiratory failure.


DPT-IPV (diphtheria, pertussis, tetanus, Polio tetanus) two vaccines
We use and inoculate as follows. Be careful not to miss any vaccinations because they are too many.

[Standard Schedule]

(A) initial vaccinations and booster shot and First Phase※
The first term is three times in initial vaccinations between 20 and 56 days) between 3 months and less than 90 months after birth.
We inoculate four kinds of mixed vaccine once in booster shot three times after 12 months to 12 months to 18 months passed) four times in totalinitial vaccinations) four times in total.
(Depending on circumstances, booster shot intervals of 6 months or more after initial vaccinations due to circumstances.)
In order to surely immunize, it is important to receive it as determined, but there has been an interval due to poor physical condition.
In some cases, do not repeat from the beginning, but inoculate the prescribed number of times.
For more information, consult your GP.
※Child who has already started inoculation with three kinds of mixture will inoculate the remaining inoculation with four kinds of mixed vaccine.
(★) A single inactivated polio vaccine has been inoculated with a mixture of three types, and a child whose vaccination has not been completed in Polio vaccination has been completed.
It is vaccine to use.

(A) 2nd vaccination
We inoculate two kinds of mixed vaccine once between 11 years old and under 13 years old as the second term.

[Free age]
(A) initial vaccinations and booster shot and First Phase
3 months to 7 and a half years old (until the day before 7 years and 6 months)

(A) 2nd vaccination
11 years old or older and under 13 years old (until the day before the 13th birthday)

side reaction of vaccine

The main side effects of the four-type (DPT-IPV) vaccine are redness, swelling (swelling), and induration (lumps) at the site of inoculation.
Side reactions other than the inoculation site include fever, mood change, nasal discharge, cough, rash, loss of appetite, red throat, and vomiting.
Significant side reactions include shock, anaphylaxis, thrombocytopenic purpura, encephalitis, and convulsions.

Inquiries to this page

Yokohama Vaccinations Call Center

Telephone: 045-330-8561

Telephone: 045-330-8561

Fax: 045-664-7296

Email address: [email protected]

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