Practical preventive medicine

Description:

Stegomyia fasciata syn. Aedes aegypti Identifier: practicalprevent00boyd (find matches)
Title: Practical preventive medicine
Year: 1920 (1920s)
Authors: Boyd, Mark F. (Mark Frederick), 1889-1968
Subjects: Preventive Medicine Public Health
Publisher: Philadelphia and London, W. B. Saunders company
Contributing Library: Columbia University Libraries
Digitizing Sponsor: Open Knowledge Commons

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
at least 12 days before the mosquito can transmitthe virus. 5. Portal oj Entrance.—Through the puncture wounds in theskin made by mosquitoes, to the subcutaneous tissues. 6. Incubation Period.—(Intrinsic) from three to six days. 196 PEACTICAL PREVENTIVE MEDICINE 7. Period oj Communicability.—Probably only during thefirst three days of the illness. 8. Methods of Control. The Injected Individual.—(a) Di-agnosis: Clinical observations only. (b) Isolation: In a well screened room or ward which hasbeen freed of mosquitoes. (c) Immunization: None. (d) Quarantine: Of contacts for six days. (e) Concurrent Disinfection: None. (/) Terminal Disinfection: Fumigate to get rid of mosquitoes. General Measures.—(a) Eradication of mosquitoes by meas-ures described under malaria. Since the habits of Stegomyiadiffer from those of anophelines, some difference in the wateraccumulations attacked must be noted. The Stegomyia is aspecies that lives closely in association with man, breeding largely
Text Appearing After Image:
Pig. 78.—The yellow-fever mosquito: Adult female, side view. Much en-larged. The silver and black markings give the insert a very striking appear-ance. Note the silver crescents on the thorax. (Howard: Farmers Bull. 547.) in artificial accumulations of water close to dwellings, suchas cisterns, barrels and cans (Fig. 79). It is diurnal in itsfirst feeding and later nocturnal. It is never found in marshesor swamps, so that attention need not be given to these unlessa simultaneous attack on malaria is also desired Epidemic Measures.—(a) Inspection service to detect un-reported cases. (b) Fumigation of houses in which cases have occurred,and also of the adjacent houses. (c) Removal of patients to screened isolation hospitals. DENGUE i. Infective Agent.—Unknown. 2. Source oj Injection.—So far as is known only typical andatypical human cases. DISEASES TRANSMISSIBLE BY INSECTS I97 3. Portal of Exit.—In the blood abstracted from patients. 4. Route of Transmission.—By agency of mo

Note About Images
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 work.