In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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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.
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Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
The elliptical galaxy Centaurus A at visible, far-infrared and x-ray wavelengths.
Genetic engineering as an application for cures
Demonstrate the Application of Triangular, Figure-Eight, and Tubular Bandages
Demonstrate the Application of Triangular, Figure-Eight, and Tubular Bandages