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Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

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As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

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Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

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The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

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If all the neurons in the human body were lined up, they would stretch more than 600 miles.

Platycnemididae are a family of damselfly called white-legged damselflies. Platycnemididae are a family of damselfly called white-legged damselflies.
Angioplasty. One form is called balloon angioplasty, shown here. A balloon catheter is threaded into Angioplasty. One form is called balloon angioplasty, shown here. A balloon catheter is threaded into
Localization of neurotransmitter action Localization of neurotransmitter action
Chemical equilibrium and the law of mass action. Chemical equilibrium and the law of mass action.
Corbel Vault, Interior of Tholos, The So-called Treasury of Atreus Corbel Vault, Interior of Tholos, The So-called Treasury of Atreus
Action potential Action potential
Video: Diversity of Living Creatures - Charles Darwin & the Beagle's Voyage

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