Some account of the last yellow fever epidemic of British Guiana / by Daniel Blair, surgeon general of British Guiana ; edited by John Davy, inspector general of army hospitals, etc.

  • Blair, Daniel.
Date:
1852
Catalogue details

Licence: Public Domain Mark

Credit: Some account of the last yellow fever epidemic of British Guiana / by Daniel Blair, surgeon general of British Guiana ; edited by John Davy, inspector general of army hospitals, etc. Source: Wellcome Collection.

Provider: This material has been provided by King’s College London. The original may be consulted at King’s College London.

    104/290 (page 82)
    Hicnt. As some time elapsed before the precursoi'y or white vomit was distinctly recognized as a symptom of the malady, the number of cases in which it occurred, is no doubt understated from the case books. It is shown, however, as might be expected, to occur oftener than black vomit. Out of the 2071 cases of mitlor and gravior, it is noticed in 417, while there are only 366 cases in which black vomit occurred. Black vomit generally followed the precursory vomit; but many cases of death have occurred after the latter only. The general earliness of this symptom, as the antecedent of black vomit, will be shown by the following Table. Pbecursobt Vomit. Day of Disease. 1. 2. 3. 4. fi. 6. 7. 8. 9. 10. 11. 12. 13. Unascer- tained. Total number of cases in each daj - - 10 66 103 95 72 37 21 8 1 0 1 2 0 1 The per centage of the mitior and gravior cases in which black vomit occurred, was 17*67. Black vomit, although a very unfavourable symptom, and more so than yellow skin, being as 75'68 to 46-23, is still not necessarily fatal. Out of the 366 cases of it, 277 only died, giving the centesimal mortality just stated, viz. 75 •68. The number of cases in which black vomit was observed, on different days of the disease, the number of deaths and rate of mortality for each day, and the rate per cent, of symptom on each day, will be seen by the following Table. Unas. B.V. Day of Disease. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. U. IS. 13. rer- Doubt- tained. ful. Total No.of cases 2 5 32 76 89 83 26 16 10 7 2 2 1 5 ]I Rate per cent, of symptom - - 0-09 0-24 1-72 3.67 4-40 4-10 1-25 0-72 0-48 0-31 0-09 0-09 0-04 0-24 0-52 Deaths - - - S 22 59 G8 60 19 12 5 6 1 1 1 4 8 Rate of mortality 100-00 68-75 77 64 76-40 79-51 73-33 80-00 50-00 85-71 .50-00 50-00 100-00 80-00 72-72 Yellow skin and black vomit were closely associated as to the time of their appearance. But the former was generally the antecedent (fortunate for the patient when otherwise). Thus,