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Do newborns really need a hepatitis B vaccine?

The Claim

The hepatitis B vaccine is unnecessary for newborns.

The Facts

Although the risk of exposure may be low, the consequences of infection can be serious.

The Truth

The hepatitis B vaccine is a safe, well-established way to protect newborns from a rare but serious infection and lifelong complications.

What we're hearing:

The hepatitis B vaccine isn’t necessary for newborns.

What we're hearing:

The hepatitis B vaccine isn’t necessary for newborns.

What's true:

Hepatitis B is often thought of as something spread through behaviors like sexual contact or sharing needles – things that may not seem relevant for a newborn.

Additionally, most pregnant mothers are tested for hepatitis B during pregnancy, which helps identify many cases before birth.

And recently, the government changed the recommendation for this vaccine to invite a conversation between the baby’s family and doctor regarding whether to give the first injection at birth or at 2 months old.

What's missing?

While exposure to hepatitis B may be unlikely, babies who do contract it face serious complications. And newborns can be exposed in ways that people may not expect: testing isn’t perfect, and exposure can happen during birth or shortly after. Without protection, a newborn is especially vulnerable.

There is no known benefit to delaying the vaccine, which has been used for over 35 years and given to millions of newborns with a strong safety record. In fact, it’s a big part of why hepatitis B rates are lower today than in the past.

What's at stake:

If infected early in life, babies have a much higher chance of developing chronic, lifelong infection, which can lead to serious liver disease and more.

There’s also a broader impact: when decisions are driven by incomplete information, it can create uncertainty or distrust that makes it harder for families to confidently protect their children.

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Bottom line:

The hepatitis B vaccine at birth is a safe, well-established way to protect newborns during a brief but important window of vulnerability. 

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Making the best decision about the hepatitis B vaccine (2025)

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