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Доказанными и потенциальными векторами желтой лихорадки в Южной Африке.

В настоящем документе, подготовленном на основе материалов, полученных Департаментом энтомологии Южноафриканского института медицинских исследований в Йоханнесбурге, приводится краткая информация о распределении, привычках для взрослых и местах разведения доказанных и потенциальных переносчиков желтой лихорадки в Южной Африке.

Совпадение в аннотации оригинала
This paper, based on records obtained from the Entomology Department of the South African Institute for Medical Research, Johannesburg, gives a summary of the distribution, adult habits, and breeding-places of the proved and potential vectors of yellow fever in South Africa.

ELECTROPHORESIS EXPERIMENTS WITH THE VIRUS AND PROTECTIVE BODIES OF YELLOW FEVER.

1. When suspended in slightly alkaline (pH 7.4 to 7.8) saline dilutions of clear, hemoglobin-free normal monkey serum, the virus of yellow fever from infected monkeys and from infected, but blood-free, mosquitoes, usually acts as if it were possessed of a positive electrical charge. 2. The virus tends to assume a negative charge in fluids having a slightly acid reaction. 3. The isoelectric point of the virus seems to be in the neighborhood of pH 7.0, possibly ranging from pH 7.3 to pH 6.9. 4. Exposure to fluid having a reaction of pH 5.0 for 3 hours appeared to inactivate the virus. 5. In expe…

INFECTIVITY OF BLOOD DURING THE COURSE OF EXPERIMENTAL YELLOW FEVER.

Five M. rhesus fatally infected with yellow fever virus ran varied and typical courses, death occurring from 82 hours to 10 days after infecting. Batches of A. aegypti were fed daily on each monkey and specimens of blood injected into other animals. By mosquito transfer, the virus was found to be circulating in the peripheral blood 1 or 2 days after the infecting and the same interval before the onset of fever; in one instance, mosquitoes became infectious by feeding on a monkey 12 hours after its inoculation. Mosquitoes continued to acquire infectivity during the febrile period and for 1 day …