When I take the 1st dose of hepatitis b vaccine

Patient : When I take the 1st dose of hepatitis b vaccine does it mean I will only be protected for a month only?
Doctor :   Thank you for writing to ATD. The Hepatitis B vaccine is made of the HBsAg. This is an antigen that produces immunity to the Hep B virus. You will need 3 doses to get immunity. You need to take all 3 doses of Hep B vaccine to ensure that the person develops immunity to Hep B. Taking just 1 dose may not help you as you may not develop immunity at all. You need to wait for 1 to 4 months after the vaccination to develop immunity. The immunity will be lifelong from then on and you need not worry. Wishing you good health.

Related Q&A

Q: Hi Doctor, I am 37 year old male and I have been in a relationship for 7 years. I had an sti test at the start of the...

Q: Wanting advice on whether I have an STI. Near the opening of my penis on one side there is a raised bump that is not ...

Q: Hi , I'm in a long distance relationship with my partner who was just tested for std's for the first time. After the ...

Q: I've one wart on my anus, but I've been in a monogamous relationship for > 20 yrs. Neither of us has ever had geni...

Q: Around rim of my penis head is red



Dr. James Obaji M.D.

  • 247 Reviews
  • Family Physician

Dr. Suneel Sharman M.D.

  • 190 Reviews
  • Family Physician

Dr. Pat Golden M.D.

  • 169 Reviews
  • Cardiologist

Dr. Kunaal Jindal M.D.

  • 112 Reviews
  • Plastic Surgeon