. Entomology for medical officers. Insect pests; Insects as carriers of disease. anTi^Ie^,- nerve C: brain inl: mandr- ^ labellum Fig. 30.—Head of Simnlium, -sucker Fig. 31.—Smwiium Larva. species has been said to kill even human beings in the same way; but whether in these cases death is caused— as in the analagous cases of death from the attack of a swarm of bees—by a multitude of envenomed wounds, or is due to the inoculation of some pathogenic microbe is not known. It cannot be affirmed that Simulium is a " carrier," so far as man is concerned; but from certain
. Entomology for medical officers. Insect pests; Insects as carriers of disease. anTi^Ie^,- nerve C: brain inl: mandr- ^ labellum Fig. 30.—Head of Simnlium, -sucker Fig. 31.—Smwiium Larva. species has been said to kill even human beings in the same way; but whether in these cases death is caused— as in the analagous cases of death from the attack of a swarm of bees—by a multitude of envenomed wounds, or is due to the inoculation of some pathogenic microbe is not known. It cannot be affirmed that Simulium is a " carrier," so far as man is concerned; but from certain coincidences in the geographical and physiographical distribution of Simulium on the one hand, and the endemic and seasonal prevalence of pellagra on the other, Dr Sambon assumes that there is some causal connection between the fly and the disease. The eggs of Simulium are laid in gelatinous masses on. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Alcock, A. (Alfred), 1859-1933. London, Gurney & Jackson
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Keywords: ., bookcentury1900, bookdecade1910, bookpubl, booksubjectinsectpests
