A retrospective survey identified 175 cases of imported paralytic poliomyelitis in 31 industrialized nations between 1975 and 1984.
Answers are grounded in this paper and cite their sources.
Supports ongoing polio surveillance in developed nations; leaves open relevance to post-eradication strategies.
To determine the number of cases of imported paralytic poliomyelitis in industrialized nations between 1975 and 1984, investigators conducted a retrospective epidemiologic survey of 31 industrialized countries. The survey showed that 175 patients …
No takes yet. Share an insight, caveat, or question.
Hga (1987) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: