[Theoretical bases of the eradication of smallpox].
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Biomedical subjects
Publications and source records attributed to I D Ladnyĭ.
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The authors studied the properties of E1 Tor cholera vibrios isolated from sulfide water of the natural sources. There was demonstrated under experimental and natural conditions the influence of ecological conditions of sulfide water on such vibrio properties as cholerogenicity, sensitivity to diagnostic and typing phages, hemolytic activity and the value of the hemolysin-destructive factor. A short-liver stay of cholera vibrios in sulfide water was accompanied by some reduction of their virulence.
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Despite a considerable success in control smallpox in a number of countries reached as a result of vaccination the problem of eradication of this infection could not be solved without uniting the efforts of all the countries in the world. Guided by humanity principles the delegation of the USSR suggested in 1958 a program of smallpox eradication in the whole world. World smallpox morbidity is analyzed in this work.
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Problems on epidemiological surveillance over cholera are elucidated; recommendations elaborated at the meeting in Madrid in 1975 are given. Data on cholera morbidity on different continent in 1961-1975, with indication of the number of countries which sent their reports to the WHO, are presented.
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