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ANNUAL REPORT OF THE

SURGEON GENERAL OF THE
PUBLIC HEALTH SERVICE
OF THE UNITED STATES

FOR THE FISCAL YEAR

1916

WASHINGTON
GOVERNMENT PRINTING OFFICE

1916

B

TREASURY DEPARTMENT,

Document No. 2792.

Public Health Service.

III
B15

V.45 1916

LETTER OF TRANSMITTAL.

TREASURY DEPARTMENT,
OFFICE OF THE SECRETARY,

Washington, December 4, 1916. SIR: In accordance with section 9 of the act of Congress approved July 1, 1902, "An act to increase the efficiency and change the name of the Marine-Hospital Service," I have the honor to transmit herewith the report of the Surgeon General of the Public Health Service for the fiscal year 1916. Respectfully,

W. G. McAdoo,

Secretary. The SPEAKER OF THE HOUSE OF REPRESENTATIVES.

3

42175

CONTENTS.

Administrative organization.

Scientific research..

General remarks ..

Diphtheria.

Outbreak at Martinsburg, W. Va..

Filariasis...

Filarial surveys.

Culex fatigans, the carrier.

Prevention..

Hookworm....

Status of hookworm campaigns.

Soil pollution.

Malaria..

Surveys.

Antimosquito measures.

Demonstration work..

Roanoke Rapids, N. C., and Electric Mills, Miss.

Crystal City, Mo....

Dallas, Texas..

Bastrop, La.

Cedars, Miss.

Cooperation with International Health Commission.

Educational measures.

Results of research work..

Determination of infectibility of A. punctipennis.

Infectibility of A. crucians..

Transmission experiments with A. punctipennis.

Hibernation studies..

Further laboratory studies of Anophelines..

Flight of A. quadrimaculatus.....

Breeding places of A. punctipennis.

Importance of these field observations.

Types of infection.

Malaria index work.

Studies of rice culture in relation to malaria prevalence.

Hemoglobinuria...

Impounded water..

Cooperation with Bureau of Fisheries.

Cooperation in mosquito campaign at Baltimore, Md.

Malaria studies in Anne Arundel County, Md.

Survey at Toledo, Ohio....

Publications..

Pellagra...

Value of diet in treatment.

Experimental pellagra in the human subject...

Relation of certain economic factors to prevalence of pellagra.

Special studies of pellagra at Spartanburg, S. C.....

Clinical work..

Dietary studies in pellagrous and nonpellagrous families.

Changes in vitamine content of bread..

Metabolism in pellagra.

Vitamine treatment of pellagrins.

Animal experiments..

Food analysis....

Dietary treatment of pellagra..

Mental manifestations of pellagra.

Publications....

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