Barton Haynes Quotes

Making a vaccine has turned out to be much more difficult than we ever believed.

- Barton Haynes

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Making | Vaccine | Turned | Difficult | Believed |

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The malaria work was slow, but the tuberculosis and HIV work moved ahead. - Barton Haynes

We're trying to do something that has not been accomplished for any vaccine yet. - Barton Haynes

Making a vaccine has turned out to be much more difficult than we ever believed. - Barton Haynes