Hepatitis B Vaccine (rDNA)

Introduction

Hepatitis B Vaccine (rDNA) is a recombinant vaccine that protects against Hepatitis B, a viral infection affecting the liver. It works by stimulating the immune system to produce antibodies that protect against the virus. This vaccine is essential for newborns, healthcare workers, and individuals at risk of Hepatitis B exposure. It is included in routine immunization schedules worldwide and is highly effective in preventing Hepatitis B infection and its complications, such as liver cirrhosis and liver cancer. Regular vaccination helps in reducing the spread of the Hepatitis B virus and promotes long-term immunity.

Uses of Hepatitis B Vaccine (rDNA)

• Prevents Hepatitis B virus (HBV) infection
• Reduces the risk of liver cirrhosis and liver cancer
• Recommended for newborns, healthcare workers, and high-risk individuals
• Protects against chronic Hepatitis B complications
• Essential for individuals with occupational exposure to blood
• Helps control the spread of Hepatitis B in the community

How Hepatitis B Vaccine (rDNA) Works

The Hepatitis B Vaccine (rDNA) is a genetically engineered vaccine containing purified Hepatitis B surface antigen (HBsAg). When administered, it stimulates the immune system to produce protective antibodies against the Hepatitis B virus. These antibodies help the body recognize and fight the virus if exposed in the future, preventing infection and its complications.

Benefits of Hepatitis B Vaccine (rDNA)

• Provides long-term protection against Hepatitis B
• Reduces the risk of liver diseases and complications
• Safe for infants, adults, and high-risk individuals
• Prevents the spread of Hepatitis B in communities
• Helps in achieving global Hepatitis B eradication goals
• Well-tolerated with minimal side effects

How to Take Hepatitis B Vaccine (rDNA)

The vaccine is administered as an intramuscular injection, typically in the upper arm (deltoid) or thigh for infants. It is given in multiple doses as part of a vaccination schedule. The standard schedule includes three doses: at birth, one month, and six months. In some cases, an accelerated schedule may be recommended. Always follow your healthcare provider` s instructions for proper immunization.

Types of Dosage Available

• Hepatitis B Vaccine (rDNA) Single-Dose Vial
• Hepatitis B Vaccine (rDNA) Multi-Dose Vial
• Hepatitis B Vaccine (rDNA) Prefilled Syringe

Side Effects of Hepatitis B Vaccine (rDNA)

• Pain or redness at the injection site
• Mild fever
• Fatigue or tiredness
• Headache
• Nausea or stomach discomfort
• Allergic reactions (rare)

Safety Advice

• Consult a doctor before taking the vaccine if you have severe allergies
• Do not take the vaccine if you have had a previous severe allergic reaction
• Safe for use during pregnancy and breastfeeding
• Common side effects are mild and resolve on their own
• Seek immediate medical attention if severe allergic reactions occur
• Ensure complete vaccination for full protection

Frequently Asked Questions (FAQs)

Q. What is Hepatitis B Vaccine (rDNA) used for?
A. It is used to prevent Hepatitis B infection and its complications, including liver disease and liver cancer.

Q. Who should get the Hepatitis B Vaccine?
A. Newborns, healthcare workers, individuals at risk of Hepatitis B exposure, and those with chronic liver conditions should get vaccinated.

Q. How many doses of Hepatitis B Vaccine (rDNA) are needed?
A. The standard vaccination schedule includes three doses at birth, one month, and six months.

Q. Is Hepatitis B Vaccine (rDNA) safe for pregnant women?
A. Yes, it is considered safe for pregnant and breastfeeding women. Consult your doctor before getting vaccinated.

Q. Can Hepatitis B Vaccine (rDNA) cause serious side effects?
A. Serious side effects are rare. Mild reactions like pain at the injection site, fever, or headache may occur.

Q. How long does the Hepatitis B Vaccine (rDNA) provide protection?
A. It provides long-term immunity, and in most cases, a booster dose is not required.