Considering that pathologists and physicians of all countries are of one accord in admitting that "the epidemics of yellow fever are always preceded by serious cases of acute malaria," yellow fever must needs then, in my opinion, express the state of saturation ration of the atmosphere by the swamp microbe, thus permitting to man a greater absorption in due time, of the morbific principle; hence the very serious character of the symptoms presented;
Considering that the two morbid entities co-exist in the same zone and increase in direct ratio of the development of the malarious germ,—a fact largely observed at Rio de Janeiro, where yellow fever is a contemporary and a companion of the excavations, breaking out at the same time that these are effected. and following them in their way through the city;
Considering, besides, that yellow fever has no distinct characteristics of its own,—the symptoms that are
MELLO VD. ON THE IDENTITY OF YELLOW FEVER AND ACUTE MALARIA—CONSEQUENT CONTAGIOUSNESS OF MALARIA AND CURABILITY OF YELLOW FEVER. JAMA. 1885;V(23):625–626. doi:10.1001/jama.1885.02391220009001b
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