Crecent Advances in Poliomyelitis
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چکیده
Poliomyelitis is an age old disease, but it was only clearly recognized as a clinical entity in the first half of the last century. Until the middle of last century it usually occurred in endemic sporadic form. Small outbreaks were recorded in St. Helena, i834, in England, I834, and in the United States, I843. The first large. epidemic occurred in Scandinavia in i868. In the I890's large epidemics began to appear in the Northern United States. Since then, epidemics have recurred at frequent intervals in these countries. More recently extensive epidemics have occurred in Australia and New Zealand. It is of considerable significance that the countries most severely affected have the highest standards of living and of hygiene and sanitation. As other countries have attained comparable standards, they in turn have suffered extensive epidemics.
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Crecent Advances in Poliomyelitis
Poliomyelitis is an age old disease, but it was only clearly recognized as a clinical entity in the first half of the last century. Until the middle of last century it usually occurred in endemic sporadic form. Small outbreaks were recorded in St. Helena, i834, in England, I834, and in the United States, I843. The first large. epidemic occurred in Scandinavia in i868. In the I890's large epidem...
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