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Educational illustrations from the book Infectious

Infectious: Pathogens and How We Fight Them is a new popular science book written by BSI member, Dr John Tregoning. With his experience as a reader in respiratory infections at Imperial College London, he has written a homage to the scientific innovations in history that have led to the world being able to combat infectious disease. We interviewed John about his book in the December edition of Immunology News. You can read the article here.

Featured in the book are illuminating illustrations created by BSI member, Ash Uruchurtu, which John was able fund through the BSI's Communicating Immunology grant scheme. These illustrations are under a Creative Commons license, so they're free for everyone to use and download for their science communication needs!

You can click on each image for a large, downloadable version.





Obligate parasite, Nucleic Acid in a protein coat. Has to infect cell to replicate.

Examples: HIV, SARS, Influenza








Prokaryote. Very diverse family. Can live independently. Treated with antibiotics.

Examples: TB, Staph aureus, Salmonella








Eukaryote. Mostly harmless, unless immunocompromised.

Examples: Athlete’s foot, Thrush, Aspergillus








Worms or protozoa. Complex, multi-stage life cycles.

Examples: Malaria, Leishmaniasis, Ascaris





Transcription & translation 

Innate Immune cells

Macrophage: Eats stuff                                                          Neutrophil: Kills Stuff

Adaptive Immune cells

T cell: Orchestrates immune response                                 B cell: Makes Antibody
            / Kills infected cells 

The immune response                                                Immune memory