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Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

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The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

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Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

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Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

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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.

Anterior view of the human skeleton. Anterior view of the human skeleton.
Human Cell Human Cell
Structures of the human myelencephalon (medulla) and metencephalon. Structures of the human myelencephalon (medulla) and metencephalon.
Four cutaneous receptors that occur in human skin. Four cutaneous receptors that occur in human skin.
Synthesis and use of glucose in the human body Synthesis and use of glucose in the human body
Comparison between human chromosome 21 and chimpanzee chromosome 22 Comparison between human chromosome 21 and chimpanzee chromosome 22
Video: Vascular tissues in a corn stem and a buttercup root

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