| 单词 |
ECHO virus |
| 释义 |
ECHO virus Path.|ˈɛkəʊ ˌvaɪərəs|
Also echovirus.
[f. the initials of enteric cytopathogenic human orphan: ‘orphan’ because when first discovered there was no disease of which they were known to be the cause.]
Any of a group of enteroviruses infection with which is usually asymptomatic but which may produce symptoms resembling those of the common cold, mild meningitis, or (rarely) poliomyelitis. So ECHO group, etc.
1955Science 16 Dec. 1188/1 These viruses—some of which have been referred to in previous literature as ‘orphan viruses’ and others as ‘human enteric viruses’—are now classified as the ‘enteric cytopathogenic human orphan (ECHO) group’. Ibid. 1188/2 Kidney cells of different monkey species vary in their susceptibility to the ECHO viruses. 1957[see enterovirus]. 1961M. Hynes Med. Bacteriol. (ed. 7) xxv. 378 Three groups of viruses—polioviruses, Coxsackie viruses and ECHO viruses—are primarily invaders of the human intestinal tract. All are small, 25–35 mµ in diameter, and survive well outside the body. Ibid. 384 ECHO viruses can often be isolated from the fæces or nasopharynx of healthy individuals, but they can probably cause aseptic meningitis, acute diarrhœa in children, and mild respiratory infections. 1965Times 3 Sept. 14/5 The echoviruses, of which over 30 types are known,..are closely related to the poliovirus, and produce a form of meningitis, but they have also been isolated from children with an upper respiratory infection resembling the common cold. |
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