| 词汇 | example_english_host-immunity |
| 释义 | host immunitycollocation in Englishmeanings of hostand immunityThese words are often used together. Click on the links below to explore the meanings. Or, see other collocations with host or immunity. host noun uk /həʊst/ us /hoʊst/ someone who ... See more at host immunity noun[U] uk /ɪˈmjuː.nə.ti/ us /ɪˈmjuː.nə.t̬i/ a situation in which you are protected against disease or from ... See more at immunity Examples of host immunityThese examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. It is tempting to implicate hostimmunity and differences in worm immunogenicity as casual factors, although there are no data to support this. This pattern of infection makes it difficult to draw conclusions about the possible influences of worm population variation on hostimmunity. This may be due to parasite-induced hostimmunity to reinfection. Modulation of hostimmunity by tick saliva is of major importance both for successful blood feeding and for transmission of tick-borne pathogens. Most of our understanding of hostimmunity to ticks and its effects on tick survival and tick-borne pathogen transmission has been gained from laboratory studies. Each child was infected with a different mycobacterial species, suggesting that an innate defect in hostimmunity was involved. An increase in circulating eosinophils was observed at day 14 post-infection but these eosinophils were probably not associated with hostimmunity against the primary infection. Lastly, hostimmunity is also unlikely to offer an explanation for the deviation between our observations and the massaction infection model. Thus hostimmunity reduced all these fitness traits in a manner consistent with direct parasitei driven biological links among them. Resistance defined as in vivo may be confounded by factors such as hostimmunity. This indicated that there was likely to be parasite-induced hostimmunity under conditions of high infection pressure. These reports mark some of the latest efforts to move from a treatment response to a proactive strategy to confer hostimmunity against the pathogen. This is probably due to the existing hostimmunity exerting its effect on new ' in-coming ' parasites. Thus, in effect, hostimmunity rendered a virulent parasite less virulent, with associated reductions in life-time transmission potential. It may be considered as a defensive reaction by the tick, to avoid temporarily the deleterious effects of hostimmunity. Switching between developmental routes is influenced by external temperature and by hostimmunity, and sensitivity to these triggers is again variable between lines. Repeated passage has been used to select lines of parasite that survive in abnormal hosts or which show adaptation to hostimmunity. Since individuals vary in the effectiveness or the severity of their immune responses to infection, hostimmunity can be broadly categorized as weaker or stronger. In addition, feeding fast benefits ticks by reducing their exposure to hostimmunity. An important property of equation (13) is that it predicts that when there is significant host immunity it allows for a lower prevalence in old animals compared to young animals. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. Want to learn more? Go to the definition of host Go to the definition of immunity See other collocations with host See other collocations with immunity |
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