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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.
Blood is approximately twice as thick as water because of the cells and other components found in it.
Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.