R. E. DYER
In the control of typhus fever we are faced with a problem presented by a disease which is transmitted in nature by two arthropod vectors of different genera. The epidemiological picture, based as it is on the arthropod-host relationship and feeding habits of the vectors, is divided into two types. One of these epidemiologic types, to which we usually refer as endemic typhus, is determined by the life history of the rat flea (Xenopsylla cheopis) and the second, or epidemic type, by the life history of the body louse (Pediculus corporis).
The rat flea acquires its infection in nature by
DYER RE. MASS IMMUNIZATION AGAINST TYPHUS FEVER1. Ann Intern Med. ;15:629–636. doi: 10.7326/0003-4819-15-4-629
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Published: Ann Intern Med. 1941;15(4):629-636.
Infectious Disease, Prevention/Screening, Vaccines/Immunization.
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