Vaccination can be just as effective with dead bacteria as with live ones, as long as you inject them with the RNA of live bacteria. This finding was published in Nature by a team of American, French, Amsterdam and Wageningen researchers. Michael Müller, Professor of Nutrition and Nutrigenomics at Wageningen University and Scientific Director of the Netherlands Nutrigenomics Centre co-authored of the publication.
Doctors have known for some time that you obtain the best immunity after vaccination with live bacteria. The immune system recognizes certain parts of the bacteria and remembers them, so that you become immune to them. That is, if you survive the vaccination. Because someone who is injected with live pathogens runs the risk of falling prey to the very disease they aim to ward off. So for safety reasons, doctors usually work with dead bacteria. Safer but also less effective.
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