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A LITTLE SOMETHING WORTH KNOWING

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HistoryOne small ahaInvention or discovery

Vaccination · the protective response it prepares the body to make

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HistoryOne small aha
Your new ahaBuild protection against a disease before a serious infection.

Vaccination prepares immune responses before exposure to a particular pathogen or toxin. Source: Vaccine ↗

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More from Inventions & Discoveries

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  1. 06He developed the first successful smallpox vaccine using cowpox material.RECALL
    Edward Jenner.

    In 1796, Jenner used material from cowpox to test protection against smallpox.

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  2. 07Microscope · the scale of objects it makes easier to observeRECALL
    Objects too small to see clearly with the unaided eye.

    Microscopes transformed the study of cells, microbes, materials, and medicine.

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  3. 08He received the landmark US telephone patent in 1876.RECALL
    Alexander Graham Bell

    Several inventors made important contributions

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