The following schematic shows the WHO Classification System for Acute Flaccid Paralysis (AFP) Cases. All 3 types of poliovirus (Enterovirus types 1, 2, and 3) may cause the paralysis. 1. Adequate specimens means 2 specimens collected 24-48 hours apart and within 14 days of onset of paralysis. 2. The specimen arriving at the laboratory must be of adequate volume approximately 8-10 grams), have appropriate documentation (laboratory request form) a…
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