File:Polio immunization days PHIL 2445.png

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描述Polio immunization days PHIL 2445.png	People in Columbus, Georgia awaiting polio vaccination during the earlier days of the National Polio Immunization Program. In the early 1950's, there were more than 20,000 cases of polio each year. After polio vaccination began in 1955, cases dropped significantly. By 1960, the number of cases dropped to about 3,000, and by 1979 there were only about 10. PHIL 2445
日期	在1955年到1964年之間 date QS:P,+1950-00-00T00:00:00Z/7,P1319,+1955-00-00T00:00:00Z/9,P1326,+1964-00-00T00:00:00Z/9 Looks early 1960s from visible autos and fashion. Anyone spot something providing better dating? The film Babies and Breadwinners was made to promote this event; it's from 1961, so this is likely 1961.
來源	http://phil.cdc.gov/phil/details.asp
作者	CDC/Charles N. Farmer

	This image is a work of the National Institutes of Health, part of the United States Department of Health and Human Services, taken or made as part of an employee's official duties. As a work of the U.S. federal government, the image is in the public domain. Please ensure that this image was actually created by the US Federal government. The NIH frequently uses commercial images which are not public domain.
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目前	2007年2月8日 (四) 00:41		1,338 × 870（2.11 MB）	DO11.10（留言 \| 貢獻）	{{Information \|Description=People in Columbus, Georgia awaiting polio vaccination during the earlier days of the National Polio Immunization Program. In the early 1950's, there were more than 20,000 cases of polio each year. After polio vaccination began

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