PMID: 10608233Dec 23, 1999

Dissemination barriers to Ross River virus in Aedes vigilax and the effects of larval nutrition on their expression

Medical and Veterinary Entomology
C D Jennings, B H Kay

Abstract

Effects of larval nutrition on vector competence of the mosquito Aedes vigilax (Skuse) (Diptera: Culicidae) from Townsville, north Queensland, for Ross River virus (RR) were examined. Larvae were reared on three different diets to create three significantly different size classes of adult mosquito. These were fed on serial dilutions of RR and then sampled on alternate days so the progression of the virus through the mosquito could be examined. No differences of vector competence could be attributed to larval nutrition. Barriers to infection and the correlation between infection rate, viral titre and transmission of RR by Ae. vigilax were also examined. The mesenteronal barrier was the only infection barrier expressed. No correlation between viral titre and transmission was detected, but a strong correlation was found between salivary gland infection and transmission rate. From this it was possible to estimate that 98.7+/-1.3% of Ae. vigilax with infected salivary glands transmit RR.

References

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Nov 8, 2012·PLoS Neglected Tropical Diseases·Andrew F van den HurkScott L O'Neill
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Citations

Jan 1, 1976·The American Journal of Tropical Medicine and Hygiene·D J Gubler, L Rosen
Oct 1, 1989·Medical and Veterinary Entomology·B H KayP Mottram
Jul 1, 1987·Journal of Medical Entomology·W S RomoserC L Bailey
Nov 1, 1966·The American Journal of Tropical Medicine and Hygiene·H S Hurlbut
Oct 1, 1984·The Australian Journal of Experimental Biology and Medical Science·B H KayJ G Carley
Jun 1, 1982·The Australian Journal of Experimental Biology and Medical Science·B H Kay
Jan 1, 1981·The American Journal of Tropical Medicine and Hygiene·L D KramerE J Houk
Apr 1, 1991·The Journal of Rural Health : Official Journal of the American Rural Health Association and the National Rural Health Care Association·C HawkK J Donham
Jan 1, 1992·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·F Cheng, A N Venetsanopoulos

Related Concepts

Onchocerciasis, Ocular
Insect Vectors
Larva
Aedes vigilax
Salivary Gland Infection
Diptera
Ross river virus
Salivary Gland Diseases
Examination of Salivary Glands
Veterinary Nutritional Physiology

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