Diseases, Conditions, Syndromes

China cleans, locks away banknotes to stop virus spread

China is disinfecting and isolating used banknotes as part of efforts to stop the spread of the new coronavirus that has killed more than 1,500 people, officials said Saturday.

Diseases, Conditions, Syndromes

Beijing orders returnees to quarantine as virus death toll hits 1,523

The death toll from China's new coronavirus epidemic jumped past 1,500 on Saturday as Beijing ordered people returning to the capital from holiday to self-quarantine for 14 days in another drastic effort to contain the outbreak.

Diseases, Conditions, Syndromes

Q&A: Treating melasma

Dear Mayo Clinic: Years ago, I had some patches of melasma on my face removed with IPL treatment. When I went to make an appointment with my dermatologist recently for the same condition, I was told IPL should not be used ...

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Ultraviolet

Ultraviolet (UV) light is electromagnetic radiation with a wavelength shorter than that of visible light, but longer than x-rays, in the range 10 nm to 400 nm, and energies from 3 eV to 124 eV. It is so named because the spectrum consists of electromagnetic waves with frequencies higher than those that humans identify as the color violet.

UV light is found in sunlight and is emitted by electric arcs and specialized lights such as black lights. As an ionizing radiation it can cause chemical reactions, and causes many substances to glow or fluoresce. Most people are aware of the effects of UV through the painful condition of sunburn, but the UV spectrum has many other effects, both beneficial and damaging, on human health.

This text uses material from Wikipedia, licensed under CC BY-SA