Gaois

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  1. AGRICULTURE, FORESTRY AND FISHERIES|agricultural activity|animal health · SOCIAL QUESTIONS|health|medical science|medicine · AGRICULTURE, FORESTRY AND FISHERIES|agricultural policy|agricultural policy|plant health legislation|plant health control

    #661047

    IATE #3581156
    veicteoir ionfhabhtaíoch Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    infectious vector | infective vector
    en
    Definition disease vector which becomes infected by biting an infectious host Reference "COM-Terminology Coordination, based on: Magori, K. & Drake, J. M. (2013) 'The Population Dynamics of Vector-borne Diseases' (7.6.2019). Nature Education Knowledge 4(4):14"
    Comment The dynamical theory of epidemics for vector-borne diseases is now highly developed, and there are variations appropriate to many host-vector systems. The first mathematical model for the population dynamics of malaria was developed by Sir Ronald Ross in 1911 and later extended by George Macdonald (Macdonald 1957), N.T.J. Bailey (Bailey 1982), and others. The classical Ross-Macdonald model assumes that hosts and vectors are either susceptible or infectious and that both of their population sizes are constant (see Figure 1). Additionally, susceptible vectors only become infected through biting an infectious host, and susceptible hosts only become infected through the bite of an infectious vector. The model also assumes that each mosquito only needs a certain number of blood meals per unit time and that there are sufficiently many hosts present for each mosquito to always be able to find a meal. Therefore, the overall rate at which bites occur is proportional to the number of vectors but independent of the number of hosts.