摘要：Over the past few years, many viruses have been isolated, particularly in the USA and Great Britain, from persons with respiratory disease. It is difficult to obtain suitable specimens from diverse areas of the world and test for viruses, but it is possible to obtain sera and test for antibodies. The present article reports the findings of an antibody survey of sera collected from 15 countries. The purpose of this survey was, first, to determine whether persons in these countries possessed antibodies against the “newer” respiratory viruses and therefore had been infected with these or related viruses, and, secondly, to look for quantitative differences in antibodies present in sera from different countries. A worldwide geographical distribution of antibodies was demonstrated which indicated a widespread distribution of those viruses considered in this study. Although it is widely believed that respiratory infections are less common and troublesome in hot or tropical regions, there was no evidence that sera obtained from countries with such climates contained less antibody than sera from countries with more temperate climates. Full text Full text is available as a scanned copy of the original print version. Get a printable copy (PDF file) of the complete article (1.5M), or click on a page image below to browse page by page. Links to PubMed are also available for Selected References . 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847
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