HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Boyd, M. F. Articles by Russell, J. C. Search for Related Content PubMed Articles by Boyd, M. F. Articles by Russell, J. C.

Preliminary Observations on the Inheritance of Susceptibility to Malaria Infection as a Character of Anopheles Quadrimaculatus, Say¹

Although we regard Anopheles quadrimaculatus as a very good host for certain strains, at least, of Plasmodium vivax, the circumstance that in most lots of this species which have been given an infecting feed, there will commonly be observed a varying proportion of individuals which did not become infected, suggests that some mosquitoes are definitely refractory to infection. The infection acquired by the susceptible members of a lot exhibits qualitative and quantitative characteristics. The former, as expressed by us, is represented by the number of infected specimens discovered in a lot, the latter by the number of cysts developing on the stomachs of those which become infected.

It has been shown (1) with high probability, that the quantitative infection will vary directly with the gametocyte density in the infectious patient, and that although the qualitative infection may likewise be influenced by the same factor, there is definite suggestion that chance variations in the proportions of refractory and susceptible mosquitoes in a lot also influence the qualitative results.

Received February 2, 1943.
¹ The studies and observations on which this paper is based were conducted with the support and under the auspices of the International Health Division of The Rockefeller Foundation, in cooperation with the Florida State Board of Health and the Florida State Hospital.

² Mr. Russell participated in this study while he was the incumbent of a graduate fellowship in the Department of Entomology, College of Agriculture of the University of Florida.