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10 BULLETIN OF THE NOPITII CAROLINA BOARD OF HEALTH. The so-called quotidian fever is merely a double infection of the ordinary tertian and the so-called Estivo-autnmnal fever is tertian in a chronic or specially virulent form. Plate 1, Fig. 1, shows the life-c3'cle of the quartan parasite as it exists in the human blood—a is the blood corpuscle just inf(H.'ted: h, c, d, e, f, show-successive advances in the maturity of the parasite; g and h show the beginning of sporulation. Figs, i and 1 are two extra-corporeal conditions of the full}^-grown spore. One should l)e ilagellated, but frequently at this part of the cycle tlie parasite seems to live an arrested life for a while and then degenerates and fall to pieces. Plate I. Fig. 2, shows tlie life-cycle of the tertian jxirasite; a, h, c, d, c and f show successively maturing phases of the jiarasite within a blood corpuscle; g and Ji are the sporulating stages. Jn quartan fever the stage g resembles a symmetrical daisy-like figure; in tertian fever this phase resembles more a bunch of grapes; / and j are extra-corporeal, sexual forms or ^'gametes'' of the spore—-tlie ilagellate form being the male. These coalesce and recommence the <jrand cvcle, but only outside the human body, i. e., naturally within the body of the mosquito, who Itas abstracted the spores with blood from some malaria-infected person. In the hu]»ian body alone the cycle ends at /(, where the non-sexual spores break from the corpuscle in which they had develo))e(l, and after being carried about in tlie blood stream for awhile they find their way into new corpuscles and so begin again the cycle until the disease is cliecked by quinine or otlier causes. The bursting forth of the spore is con-commitant with the chill stage of the disease, while the renewed attack of the spores upon the blood cells is the cause of the fever stage. Plate I, Fig. 3, shows tlie life-cycle of the malignant or pernicious forms; a, h, c, d, e, /', are the successive stages as in the two preceding figures; g shows a double infection of a l)lood corpuscle, conunon in malignant malaria; I and j are the sporulating stages; k is the crescent or ''resting-spore stage"' of the parasite within the human body; tn, u, o, are stages of the development of the crescent into the fiagellate form. These latter changes take place only outside of the human body, i. c., in nature they occur only within the body of the )nos-quito. ]5ut these changes also may take place in a sample of malarial blood kept under the mk-roscope on a glass slide. Fig. 4 is another illustration of the life-cycle of the pernicious form of the malarial parasite within the human body. 1 is the spcrozoit. introduced into the blood by a bite of Anopheles mosquito; 2 shows the original sporozoit multiplied three fold; 3 shows a blood corpuscle invaded by one of the parasites. At 5a-I-VI the parasite completes the cycle to the free-spore stage, when it is ready to begin again, as at 3. 5 a" 5a 5a 5 a- e>Q » 3 4 Fig. 4.—Life Cycle of the Malarial Parasite in the Human Body. We have followed the successive phases of the cycle of the parasite within tlie human bo<ly. When an Anopheles mosquito sucks into its own body blo<Ml containing tlie crescent or resting spores
Object Description
Rating | |
Fixed Title * | NCHH-03: Bulletin of the North Carolina Board of Health [1886-1913] |
Document Title | Bulletin of the North Carolina Board of Health [1886-1913] |
Subject Topical | Public health -- North Carolina -- Periodicals. |
Subject Topical Other | Public Health -- North Carolina -- Periodicals. |
Description | Published: 1886-1913. |
Contributor | North Carolina. State Board of Health. |
Publisher | Wilmington, N.C. : Secretary of the Board, 1886-1913. |
Repository | University of North Carolina at Chapel Hill. Health Sciences Library. |
Host | University of North Carolina at Chapel Hill |
Date | 1904-1905 |
Identifier | NCHH-03-019 |
Form General | Periodicals |
Language | English |
Rights | This item is part of the North Carolina History of Health Digital Collection. Some materials in the Collection are protected by U.S. copyright law. This item is presented by the Health Sciences Library of the University of North Carolina at Chapel Hill for research and educational purposes. It may not be republished or distributed without permission of the Health Sciences Library. |
Digital Collection | North Carolina History of Health Digital Collection |
Sponsor | The North Carolina History of Health Digital Collection is an open access publishing initiative of the Health Sciences Library of the University of North Carolina at Chapel Hill. Financial support for the initiative was provided in part by a multi-year NC ECHO (Exploring Cultural Heritage Online) digitization grant, awarded by the State Library of North Carolina, and funded through the Library Services and Technology Act (LSTA). |
Volume Number | 19 |
Health Discipline | Public Health |
Digital Format | JPEG 2000 |
Print / Download PDF Version | http://archives.hsl.unc.edu/nchh/nchh-03/nchh-03-019.pdf |
Document Sort | all; group-b; nchh-03 |
Volume Link | http://dc.lib.unc.edu/cdm/search/collection/nchh/field/identi/searchterm/NCHH-03-019 |
Title Link | http://dc.lib.unc.edu/cdm/search/collection/nchh/field/documa/searchterm/NCHH-03 |
Catalog Record link | http://search.lib.unc.edu/search?R=UNCb1324480 |
Description
Fixed Title * | Page 5 (images) |
Document Title | Bulletin of the North Carolina Board of Health [1886-1913] |
Subject Topical | Public health -- North Carolina -- Periodicals. |
Subject Topical Other | Public Health -- North Carolina -- Periodicals. |
Description | Published: 1886-1913. |
Contributor | North Carolina. State Board of Health. |
Publisher | Wilmington, N.C. : Secretary of the Board, 1886-1913. |
Repository | University of North Carolina at Chapel Hill. Health Sciences Library. |
Host | University of North Carolina at Chapel Hill |
Date | 1904 |
Identifier | NCHH-03-019-0009 |
Form General | Periodicals |
Page Type | all; all images; illustration; all images; diagram; article |
Language | English |
Rights | This item is part of the North Carolina History of Health Digital Collection. Some materials in the Collection are protected by U.S. copyright law. This item is presented by the Health Sciences Library of the University of North Carolina at Chapel Hill for research and educational purposes. It may not be republished or distributed without permission of the Health Sciences Library. |
Filename | bulletinofnorthc19nort_0009.jp2 |
Digital Collection | North Carolina History of Health Digital Collection |
Sponsor | The North Carolina History of Health Digital Collection is an open access publishing initiative of the Health Sciences Library of the University of North Carolina at Chapel Hill. Financial support for the initiative was provided in part by a multi-year NC ECHO (Exploring Cultural Heritage Online) digitization grant, awarded by the State Library of North Carolina, and funded through the Library Services and Technology Act (LSTA). |
Volume Number | 19 |
Issue Number | 1 |
Page Number | 5 |
Health Discipline | Public Health |
Full Text |
10 BULLETIN OF THE NOPITII CAROLINA BOARD OF HEALTH.
The so-called quotidian fever is merely a double infection of the ordinary tertian and the so-called Estivo-autnmnal fever is tertian in a chronic or specially virulent form. Plate 1, Fig. 1, shows the life-c3'cle of the quartan parasite as it exists in the human blood—a is the blood corpuscle just inf(H.'ted: h, c, d, e, f, show-successive advances in the maturity of the parasite; g and h show the beginning of sporulation. Figs, i and 1 are two extra-corporeal conditions of the full}^-grown spore. One should l)e ilagellated, but frequently at this part of the cycle tlie parasite seems to live an arrested life for a while and then degenerates and fall to pieces.
Plate I. Fig. 2, shows tlie life-cycle of the tertian jxirasite; a, h, c, d, c and f show successively maturing phases of the jiarasite within a blood corpuscle; g and Ji are the sporulating stages. Jn quartan fever the stage g resembles a symmetrical daisy-like figure; in tertian fever this phase resembles more a bunch of grapes; / and j are extra-corporeal, sexual forms or ^'gametes'' of the spore—-tlie ilagellate form being the male. These coalesce and recommence the |
Digital Format | JPEG 2000 |
Print / Download PDF Version | http://archives.hsl.unc.edu/nchh/nchh-03/nchh-03-019.pdf |
Document Sort | all; group-b; nchh-03 |
Article Title | The Etiology of Malaria |
Article Author | McCarthy, Gerald |
Volume Link | http://dc.lib.unc.edu/cdm/search/collection/nchh/field/identi/searchterm/NCHH-03-019 |
Title Link | http://dc.lib.unc.edu/cdm/search/collection/nchh/field/documa/searchterm/NCHH-03 |
Catalog Record link | http://search.lib.unc.edu/search?R=UNCb1324480 |
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