Tag: Chlamydia
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Trachoma: Contained but not yet subdued
Trachoma is a chronic eye infection caused by Chlamydia trachomatis, a bacterium at first thought to be a virus because of its minuscule size. It is the most common infectious cause of blindness worldwide, striking repeatedly in early childhood and, until recently, blinding millions.1 In 1907, Ludwig Halberstadter and Stanislaus von Prowazek observed the causative…
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A brief history of menstruation
Fangzhou LuoPortland, Oregon, United States After a few failed attempts to redirect a flirtatious student to “higher pleasures” like music, the Ancient Greek philosopher and mathematician Hypatia resorted to revealing where she was in her menstrual cycle to deter him. The philosopher who recorded this—Damascius—does not specify if this student was Orestes,1 who remained a…