Animations

Watch or download our free-to-use animations on DNA sequencing, parasitic diseases (protozoans and worms), bacterial diseases (syphilis and TB) and viral diseases (HIV and dengue infection).

The animations on this site are, unless otherwise stated, © The Wellcome Trust. Animations are freely available for download for personal, academic teaching or study use, under the terms of the Creative Commons Attribution-Non-commercial-No-derivatives version 2.0 licence for England and Wales. If you wish to broadcast an animation in any form, please email Wellcome Images - images@wellcome.ac.uk - or call 020 7611 8348, as a fee may be negotiable.

DNA Explore DNA structure, function and analysis in these animations, which explain the biological processes underpinning DNA function and how new technologies are being used to sequence it.

Parasitic disease: Protozoans Protozoa - single celled organisms with a defined nucleus - live in many different habitats. Investigate how certain protozoa have evolved complex parasitic life cycles to exploit the human body, with serious consequences for health.

Parasitic disease: Worms Parasitic worms are a major public health problem. Thriving in numerous parts of the world associated with poor sanitation or water, these parasites have devised ingenious mechanisms that allow them to enter the human body, resulting in serious disease.

Bacterial diseases

Bacteria are one of the simplest forms of independent life with no nucleus or membrane bound organelles. These animations show that, despite this apparent simplicity, bacterial diseases pose a profound threat to world health.

Viral diseases Unable to replicate without usurping the cellular machinery of more complex organisms, these viruses invade and hijack their host's cells, resulting in serious disease.