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Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.
Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.
In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.
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.
![(A) A 62-year-old patient with myxedema exhibiting marked edema of the face and a somnolent look. Th](https://biology-forums.com/gallery/47/medium_14755_07_10_12_2_58_08_93192222.jpeg)
![Lumbar puncture. Abbreviated LP, the lumbar puncture is a common procedure that withdraws cerebrospi](https://biology-forums.com/gallery/47/medium_14755_14_10_12_6_49_35_94142278.jpeg)