Micro-organisms : with special reference to the etiology of the infective diseases / by C. Flügge ; translated from the 2nd and thoroughly revised ed. of "Fermente und Mikroparasiten" by W. Watson Cheyne.

  • Carl Flügge
Date:
1890
Catalogue details

Licence: Public Domain Mark

Credit: Micro-organisms : with special reference to the etiology of the infective diseases / by C. Flügge ; translated from the 2nd and thoroughly revised ed. of "Fermente und Mikroparasiten" by W. Watson Cheyne. Source: Wellcome Collection.

    750/844 (page 736)
    and cholera Lacilli is of little importance, and lias but little influence on the mode of spread of the disease, Mhile on the other hand it plays a more important role in tropical countries. Local and The chief fact which Pettenkofer has brought for- disposition'^° ward in support of his views is the peculiar local and may be ex- seasonal distribution of cholera and t\nDhoid fever, which plained with- . out assuming according to him can only be explained as a result of ^fliiencTof some influence of the soil. It has been already shown the soil. ^]^Q chapter on cholera, and will be further discussed below, that such local and seasonal variations in the distribution of these diseases can be very well explained, even though we hold to the opinion of the contagious- ness of both diseases, and only ascribe to the soil the rSle of a part of our surroundings, in that like other substrata it harbours the infective agents given off by the sick for a considerable time, and then again brings them into contact with man. In accordance Having thus arrived at definite views as to the gotng^viewswe various modes of spread of the infective diseases, it is skier the°' ^^^^ *° group together and characterise the sources of following infection in the case of each individual disease. The iXcTioiu following is the result in the case of the more impor- tant infective diseases, omitting those whose mode of transmission is as yet too imperfectly known (viz., leprosy, recurrent fever, dysentery, yellow fever, &c.):— a. Contagious Obligatory Parasites, (a) With slight resisting power. Syphilis and gonorrhoea: sources of infection, the fresh secretions. Eabies : fresh saliva, blood, spinal cord, and brain.