Some doctors may recommend that travelers receive a combination hepatitis A and B vaccine.

His current research focuses on the development and characterisation of novel influenza A and B vaccines.

Ask your doctor if you should get a hepatitis A or B vaccine.

In July 1986, a genetically engineered hepatitis B vaccine was licensed by the US Food and Drug Administration.

The most common side effects were those that occur with the individual hepatitis A and B vaccines, such as:

Twinrix: A combination hepatitis A and B vaccine (2001).

Despite having the -B vaccine, Killgore used gloves and a mask.

That group would be composed of active Project members just a few hundred of them-and their families, and other selected scientists protected by Berg's -B vaccine.

Work on the "A" and "B" vaccines could be explained away as medical research.

He'd been one of the senior scientists on the Project, developer of the "A" and "B" vaccines, who'd also helped to design Shiva.