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Search results with tag "Serology serology"
Chapter 18: Polio; Epidemiology and Prevention of Vaccine ...
www.cdc.govSerology Serology for all three types of poliovirus is currently not available in most laboratories because of new regulations for poliovirus containment. Furthermore, serology has several limitations. Two specimens are needed, one early in the course of the illness and another three weeks later. A four-fold rise in