Citaat:
Oorspronkelijk geplaatst door Indomitable
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Toen hadden ze wel een goeie reden om achterdochtig te zijn lees ik zo.
Cases had been known to occur of secondary disease transmission due to poor practice. Some physicians used arm-to-arm vaccination — meaning they would use the same instrument to vaccinate a whole line of people — or used vaccine prepared from a human source rather than a bovine source. The lack of sterile cleaning between operations or the use of vaccine prepared from an infected person could lead to rare cases of secondary disease transmissions.