Information on chickenpox vaccination

From October 1, 2014, the varicella vaccine became a regular vaccination based on the Vaccination Law.
Chickenpox vaccination is a live vaccine that reduces the virulence of the chickenpox virus. You can inoculate from 1 year old, and you will be inoculated twice.
Those who have had chickenpox before are not eligible.

Symptoms of chickenpox

Chickenpox is the so-called “chickenpox”, a rash disease caused by a virus called varicella-zoster virus. It spreads by airborne infection, droplet infection, and contact infection, and its incubation period is said to be about 2 weeks after infection. Fever is present before the onset of the rash, and in typical cases, the rash begins with erythema (redness of the skin surface), blisters, pustules (blisters containing viscous fluid), and crusting. It is said to heal by (becoming a scab). Some have become more severe, and according to recent statistics, it is estimated that about 1 million chickenpox develops annually in Japan, about 4,000 are hospitalized, and about 20 die.
Chickenpox is a predominantly childhood illness, with more than 90% of cases under 9 years of age. Severity in children is due to complications such as febrile convulsions, pneumonia, and bronchitis. Chickenpox is rarely seen in adults, but when chickenpox develops in adults, it is said that there is a high risk that chickenpox itself will become severe.

Effect of vaccination

Currently, a live attenuated varicella vaccine (hereinafter referred to as varicella vaccine) is used in Japan. It is believed that a single vaccination with the varicella vaccine can prevent almost 100% of severe chickenpox, and two vaccinations can prevent the onset of chickenpox, including mild chickenpox.
In addition, it is said that if you come into contact with chickenpox patients, you can prevent the onset by vaccination within 3 days.

About side reactions

There are few side reactions, but sometimes fever and rash are seen, and rarely local redness, swelling, and induration are seen.
Rarely reported serious side reactions include anaphylaxis-like symptoms and acute thrombocytopenic purpura.

Inoculation time

	Target person	Standard inoculation period	Inoculation method	remarks
First inoculation	1-2 years old	12 to 15 months after birth	Inoculate once.
Booster vaccination	1-2 years old	Interval of 6 to 12 months after the end of the first vaccination	Inoculate once.	The interval between the first and second vaccinations should be at least 3 months.

Inoculation cost

free.

Belongings

Maternal and Child Health Handbook
Address, age, name can be confirmed (health insurance card, etc.)
Vaccination number sticker (If you have already put it on the pre-examination slip, you do not need it)

* If you do not have the pre-examination slip, please use the one that is available at the city cooperating medical institution. It is also available at the Infectious Disease Control Division of the Health Center and the Health Division of each ward Health and Welfare Center, or you can download it from the link below.
Download the pre-examination slip (chickenpox) (PDF: 255KB)

* Vaccination must be accompanied by a guardian. A power of attorney (PDF: 105KB) is required if someone other than a guardian is to take it .

* Please see here if you would like to have the pre-examination slip mailed .

Precautions for inoculation

As a general rule, vaccinations should be given on a good day. If your child is not in good health, consult your doctor before deciding whether or not to inoculate.
In addition, you cannot be vaccinated in the following cases.

If you have a clear fever (usually above 37.5 degrees)
When it is clear that you have a serious acute illness
If you have had anaphylaxis due to the components of the vaccination solution you should receive
If you have a disease with apparently abnormal immune function or if you are receiving treatment that causes immunosuppression
In addition, when the doctor determines that the condition is inappropriate

General precautions after vaccination

Observe your child at a medical institution or get in touch with your doctor for 30 minutes after vaccination. Sudden side reactions may occur during this time.
Watch out for side reactions for a week after inoculation.
Keep the inoculation site clean. You can take a bath, but do not rub the inoculation site.
Avoid strenuous exercise on the day of inoculation.
If you experience any abnormal reactions or changes in your physical condition at the site of inoculation after inoculation, see a doctor immediately.

Inoculation medical institution

You can receive it at the vaccination cooperation medical institution designated by Chiba City.

Cooperating medical institutions have a link to the list in “Implementation method” of ” Information on routine immunization “.

* Reservations must be made by phone to a medical institution in advance.

About health damage relief system by vaccination

If a serious side reaction caused by routine vaccination causes health problems such as medical treatment or leaving a disability that interferes with your life, the Immunization Law You can get compensation based on.
There are categories of medical expenses, medical allowances, child-rearing pensions for children with disabilities, disability pensions, lump-sum death allowances, and funeral fees according to the degree of health damage, and the amount stipulated by law is paid. Except for the lump-sum death allowance and funeral fee, payment will be made until the treatment is completed or the disability is healed.
However, the causal relationship between the health hazard caused by vaccination or another factor (infectious disease that was mixed in before or after vaccination or another cause, etc.) is determined by vaccination / infectious disease. After deliberation by a national examination committee consisting of experts in various fields such as medical care and law, y

* Vaccination must be accompanied by a guardian. A power of a ttorney (PDF: 105KB) is required if someone other than a guardian is to take it .