Dee ihe ga-eso paragraf a - Ọrịa ọgbụgbọ na Broad Street nke 1854
bụ ajọ ọrịa ọgbụgba nke ọgbụgba nke mere na 1854 na nso Broad Street (ugbu a Broadwick Street) na mpaghara Soho nke London, England, ma mee n'oge ọrịa ọgbụgba nke atọ. Ọrịa a, nke gburu mmadụ 616, bụ nke a kasị mara amara n'ihi ọmụmụ nke dọkịta bụ́ John Snow mere banyere ihe ndị na-akpata ya na echiche ya bụ́ na mmiri nje na-emetọ bụ isi iyi nke ọrịa ọgbụgbọ na ọnyà, kama ịbụ ụmụ irighiri ihe ndị dị n'ikuku (nke a na-akpọ "miasma").