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Arguing For Vaccination
FILE - In this April 8, 1955 file photo, Dr. Jonas Salk, developer of the polio vaccine, describes how the vaccine is made and tested in his laboratory at the University of Pittsburgh. Around the beginning of the 20th century, vaccines were unregulated and could be as likely to harm a child as protect them. Opposition seemed to plummet for several decades, as vaccines got better and succeeded in beating back diseases that had long terrified families, including polio, measles and whooping cough. (AP Photo)
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Detalii fotografie |
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Pittsburgh, United States |
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AP / Mediafax Foto |
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| Fotograf: |
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Uncredited |
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3 Martie 2015 |
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2988 x 2305 (2.06 MB) |
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| IMPORTANT: |
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Aceasta imagine este din sursa AP Images. Mediafax Foto este unic distribuitor in Romania a fotografiilor AP Images.
Descarcarea acestei imagini poate genera costuri suplimentare.
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