The Administration of a Yellow Fever Campaign
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| Hersteller: | Forgotten Books (Rucker, W. C.) |
| Stand: | 2015-08-04 03:50:33 |
Produktbeschreibung
Excerpt from The Administration of a Yellow Fever Campaign: Supplement No; 15 to the Public Health Reports, June 12, 1914 As early as 1881 Dr. Carlos Finlay, of Habana, expressed the belief that yellow fever was propagated by the mosquito, the infecting agent being transferred on the proboscis of the insect. The theory of the mosquito transmission of yellow fever was not placed on a scientific basis, however, until 19 years later, when a commission from the United States Army, headed by Maj. Walter Reed, completed its classical experiments in Cuba. The following year the commission expressed its conclusions in 11 postulates as follows: 1. The mosquito, Culex fasciatus, serves as the intermediate host for the parasite of yellow fever. 2. Yellow fever is transmitted to the nonimmune individual by the bite of the mosquito that has previously fed on the blood of those sick with this disease. 3. An interval of about 13 days or more after contamination appears to be necessary before the mosquito is capable of conveying the infection. 4. The bite of the mosquito at an earlier period after contamination does not appear to confer any immunity against a subsequent attack. 5. Yellow fever can also be experimentally produced by subcutaneous injection of blood taken from the general circulation during the first and second days of the disease. 6. An attack of yellow fever produced by the bite of the mosquito confers immunity against the subsequent injection of the blood of an individual suffering from the nonexperimental form of this disease. 7. The period of incubation in 13 cases of experimental yellow fever has varied from 41 hours to 5 days and 17 hours. 8. Yellow fever is not conveyed by fomites, and hence disinfection of articles of clothing, bedding, or merchandise, supposedly contaminated by contact with those sick of this disease, is unnecessary. 9. A house may be said to be infected with yellow fever only when there are present within its walls mosquitoes capable of conveying the parasite of this disease. 10. The spread of yellow fever can be most effectually controlled by measures directed to the destruction of mosquitoes and the protection of the sick against the bites of these insects. 11. While the mode of propagation of yellow fever has now been definitely determined, the specific cause of this disease remains to be discovered. The truth of these statements has been proven by many different observers in widely separated places and under varying conditions, and the epidemiology of yellow fever is now based entirely on the mosquito dogma. For practical purposes this may be reduced to three postulates upon which rests the entire plan of yellow fever campaign. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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