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About Hepatitis B Vaccinations
Last update date April 1, 2023
What is Hepatitis B?
When infected with the hepatitis B virus, it becomes acute hepatitis and may recover as it is, or it may become chronic hepatitis. Some fulminant hepatitis can lead to severe symptoms to death.
In addition, the virus lurks in the liver without being clarified as a symptom, and may become chronic hepatitis, cirrhosis, liver cancer, etc. over the years. It is known that the younger the age, the milder the symptoms of acute hepatitis are mild or less obvious, but the more likely to take the form of persistent infection in which the virus lurks.
Infection occurs when a newborn born from a hepatitis virus (HBsAg)-positive mother, a person who is directly exposed to hepatitis virus-positive blood or body fluid, or sexual contact with hepatitis virus-positive persons.
How to Vaccinations
Hepatitis B Vaccinations is inoculated twice at intervals of 27 days or more (typically 2 months and 3 months after birth), and at least 139 days after the first dose (*) We inoculate three times (typically 7 to 8 months after birth).
※If a child born from a HBsAg-positive pregnant woman and has been vaccinated with hepatitis B vaccine to prevent mother-to-child transmission, you will not be eligible for routine immunization. Please continue to receive vaccinations under the application of employee health insurance.
[Standard Schedule] (Standard inoculation age is 2 months, 3 months after birth, 7 to 8 months after birth)
1st and 2nd times: After inoculation of the first time, inoculate the second at intervals of 27 days or more.
3rd time: At least 139 days after the first vaccination (*), look 3 times.
[Age available free of charge]
0 months or older and less than 1 year old (until the day before the 1st birthday)
Side reaction of vaccine
Side reactions may include redness (redness), swelling (swelling), induration (lumps), pain, fever, malaise, headache, etc. at the inoculation site. Very rarely, severe side effects include anaphylaxis and acute sporadic encephalomyelitis (ADEM).
For inquiries to this page
Yokohama Vaccinations Call Center
Phone: 045ー330-8561
Phone: 045ー330-8561
Fax: 045ー664ー7296
Email address: ir-yobousessyu@city.yokohama.jp
Page ID: 278-590-891