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There are 20 feet of blood vessels in each square inch of human skin.
In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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.
Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.