Schistosoma mansoni parasite. In 2009 researchers from the UT Health Science Center San Antonio and other institutions crack the genetic code of Schistosoma mansoni, a flatworm that can live up to 10 years on average in humans. The parasite is endemic in many tropical areas of the world. #getuv #viqua

A macrophage white blood cell (centre) engulfs and destroys bacteria (orange) and spews out the remnants.

Colored scanning electron micrograph (SEM) of squamous cell carcinoma (cancer) cells from a human mouth. The many blebs (lumps) and microvilli (small projections) on the cells' surfaces are typical of cancer cells.

HIV Virus Cell

Human skin cells

diatom

The bioluminescent, Pyrocystis lunula is a crescent or half-moon shaped dinoflagellate species that belongs to the oceanic plankton of tropical and subtropical seas. It is a single-celled alga (round nucleus) and reproduces asexually. This species is nontoxic.

Dust mite Dermatophagoides pteronyssinus. This mite is eight legged of which six legs are visible (at lower frame). The mite has an unsegmented, round body. It's mouthparts (at lower centre) are highly adapted to feeding on the dead scales of human skin found in household dust. Dust mites are relatives of spiders and scorpions.

human spinal nerve, SEM

rotavirus causes severe diarrheal illness in infants and children

A crab louse normally lives on the pubic region of humans - and can also be found in eyelashes

Human Fingerprint Ridge

A picture of how the brain encodes memory at a cellular level! Something so big and powerful starts at the most microscopic platform!

Human skin outermost layer

A passage in the lung - a bronchiole

E. coli--part of the normal flora of the human gut. Certain strains of E. coli produce various toxins that cause illness

Developing nerve cells

The Acinetobacter baumanii which causes severe pneumonia and infections of the urinary tract. The bacteria is resistant to most antibiotics.

Staphylococcus bacteria. Coloured scanning electr- on micrograph (SEM) of Staphylococcus aureus bacteria (yellow) on human nasal epithelial cells. These gram-positive cocci (spherical bacteria) are adhering to mucus (blue) on the hair-like cilia which protrude from the epithelial cells. S. aureus is very common in humans, living harmlessly on the skin and in the nose, throat and large intestine. Science is Everything (Staphylococcus bacteria. Coloured scanning electr-...)

An electron microscope catches the immune system blooming into action. A white blood cell (red) wraps itself around a mycobacterium tuberculosis, the causative agent of most cases of tuberculosis.

The "blood fluke" Schistosoma mansoni causes schistosomiasis, the world's second most devastating parasitic disease. Credit: David Scharf / Science Source