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Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.
The horizontal fraction bar was introduced by the Arabs.
In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).
There are more sensory neurons in the tongue than in any other part of the body.

