منابع مشابه
Acquired immunity to malaria.
Naturally acquired immunity to falciparum malaria protects millions of people routinely exposed to Plasmodium falciparum infection from severe disease and death. There is no clear concept about how this protection works. There is no general agreement about the rate of onset of acquired immunity or what constitutes the key determinants of protection; much less is there a consensus regarding the ...
متن کاملInnate and acquired immunity
• The cells of the immune system are divided into lymphoid and myeloid lineages. The former include T lymphocytes and their subsets identified by CD markers, B lymphocytes and natural killer (NK) cells. The myeloid lineage includes the neutrophils, eosinophils and basophils as well as the monocyte/ macrophage series and platelets. • Innate immunity depends on physical, physiological and chemica...
متن کاملComplement's participation in acquired immunity.
The preliminary evidence for the involvement of complement in promoting primary humoral responses dates back over a quarter of a century. However, it is only in the course of the past decade or so that the detailed mechanisms underlying complement's influence have been characterized in depth. It is now clear that complement serves as a regulator of several B cell functions, including specific a...
متن کاملThe Clonal Selection Theory of Acquired Immunity
Drawing upon our knowledge of microbial genetics, Burnet has proposed a theory of antibody formation which offers an explanation for certain poorly understood immunologic phenomena (for example, the persistence of antibody for long periods in the absence of contact with the antigen, and the failure to form antibodies to self-antigens under normal conditions). According to Burnet's hypothesis, a...
متن کاملInfection-acquired versus vaccine-acquired immunity in an SIRWS model
Despite high vaccine coverage, pertussis has re-emerged as a public health concern in many countries. One hypothesis posed for re-emergence is the waning of immunity. In some disease systems, the process of waning immunity can be non-linear, involving a complex relationship between the duration of immunity and subsequent boosting of immunity through asymptomatic re-exposure. We present and anal...
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ژورنال
عنوان ژورنال: TRENDS IN THE SCIENCES
سال: 2019
ISSN: 1342-3363,1884-7080
DOI: 10.5363/tits.24.9_80