Statistical studies in immunity : the incubation period and the crisis / by John Brownlee.

  • John Brownlee
Date:
1906
Catalogue details

Licence: In copyright

Credit: Statistical studies in immunity : the incubation period and the crisis / by John Brownlee. Source: Wellcome Collection.

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

    7/28 (page 7)
    period does not seem to be very great. Dr. Dukes, in his papers already referred to, has expressed this opinion, and in the accom- panying table (Table II. a) it will be seen that this conclusion is also true for most cases of chicken pox, while in the case of small- pox (Table II. b) it is found that the average incubation period for Table I. a.—The Same for Scarlatina. No. of Days. -I I 2 3 4 5 6 7 8 9 I o I D 2 2 D 1 1 3l^ 3 4 I I 1 SD 2 Others D . ] 1 I I 2 J I Others Dr. Murchison 1 I I Others ..... ■ I 1 I ? Total ..... 2 5 4 7 3 3 1 I I ? Table II. a. Incubation Period of Chicken-pox Relative to Age. Years of Age. No. of Cases. Mean Incubation Period in Days. i -I 3 1 i6'6 1-2 lO 164 2 3 6 i8-3 ' 3-4 i8 157 4-5 lO i6'o 5-b 5 13-6 6-7 7 157 7-8 I 15 0 8-9 3 14-1 9- 2 i5‘5 those patients suffering from smallpox above twenty-five years of age is within a fraction of a day the same as the average for those below twenty five. No distinction between the patients as regards age has therefore been deemed necessary in this discussion. In regard to the length of the incubation period being dependent