Encyclopedia of practical medicine.

  • Nothnagel, Hermann, 1841-1905.
Date:
1901-08
Catalogue details

Licence: In copyright

Credit: Encyclopedia of practical medicine. Source: Wellcome Collection.

Provider: This material has been provided by The University of Leeds Library. The original may be consulted at The University of Leeds Library.

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    and December. From this time there is ahnost alwayg a slow or a more rapid decline. The .period of least prevalence of typhoid fever is every- where the sprmg and the beginning of summer, especially the months of March, April, and May. In Leipsic, as the accorapauying diagrammatic representation of the cases observed in the Jacobsspital between the years 1880 and 1892 shows, the mouths in which the largest number of cases occurred were invari- ably August, September, aud October. November also exhibited on the average high figures. The lowest prevalence in Leipsic occurs in the months of April, May, aud June. In July the increase, however, generally begins again, and it continues uninterruptedly to its acme during the autumn months (Fig. 4). A table showing the number of cases received during the different months and years is added. This is extremely interesting from the general uniformity in the conditions during the different years. Also in Dresden, according to the observations of Fielder,' extending over eleven years, the months of April aud May exhibit the least frequency of typhoid fever, while August and September show the highest, while a greater number generally occur in the winter months than in June and July. A striking similarity to these observations is exhibited by the con- ditions in London as described by Murchisou for the admissions to the London Fever Hospital between the years 1848 and 1862. I have prepared a dia- gram on the basis of his statements (Fig. 5). In its details the London 1 1 C E a. TO :£ =3 g i| i- J i as. § 250 2W 230 220 210 200 190 i 180 170 160 150 \ I'lO 130 120 no 100 90 80 70 60 1 =3 i CI. <£ :S ra .1= c —} -5 5 ^ r 1 ' M 400 380 360 3W 320 300 280 260 240 220 200 180 160 \ 140 120 V 100 80 Fig. 4. Fig. 5. diagram as compared with that of Leipsic exhibits quency during the winter months from the maximum of although the number is still quite large during the mouth relation appears to exist especially in those places, and in those years, in which the ascent of the curve begins the maximum is reached correspondingly later (in and October, as compared with August in Leipsic). ' hoc. cit. a reduction in fre- the autumn months, of December. This almost everywhere somewhat later and London September The epidemic of