|
|
HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.
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).
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.
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.
![Circular clockwise pattern. Gently lay a hand on the abdomen to establish contact. Apply effleurage ...](https://biology-forums.com/gallery/33/medium_380798_23_08_17_1_14_06_331032433.jpeg)
![Apply direct pressure to points along the shoulders. Stand to one side and use your forearm to apply ...](https://biology-forums.com/gallery/33/medium_380798_23_08_17_8_22_01_3343213.jpeg)