DNA vaccine production. Technician holding a bottle containing genetically modified (GM) bacteria used to produce recombinant hepatitis B vaccine. Tra
DNA vaccine production. Technician holding a bottle containing genetically modified (GM) bacteria used to produce recombinant hepatitis B vaccine. Traditional hepatitis vaccine contains the full virus, which could potentially become active and infect patients. A recombinant vaccine is made by inserting a piece of DNA from the virus into another organism, such as a bacterium. The viral protein is expressed by the bacterium and purified for use as a vaccine. Because the vaccine only contains a viral protein and not the whole virus, there is no risk of the virus becoming active. Photographed at Shantha Biotechnics in Hyderabad, India.
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Photo credit: © VOLKER STEGER/SCIENCE PHOTO LIBRARY / Alamy / Afripics
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