. Preventive medicine and hygiene. 100% PERSONS. r Prepared by Dr. Hi. Fig. 5. Note:— 1. No cases of Smallpox under 2 years of age. 2. Great majority of persons attacked have the disease in mild form. 3. Gradual loss of vaccination immunity as age advances. 4. No deaths occur until later life. Note :— 1. Many cases occur under 2 years, and comparatively large proportion ofthese children die. 2. No influence to control the fatality of the disease, except the recuperative pow-er of youth, as seen from 10-30 yrs. 3. Deaths very numerous in children under 10 years, and persons over 4
. Preventive medicine and hygiene. 100% PERSONS. r Prepared by Dr. Hi. Fig. 5. Note:— 1. No cases of Smallpox under 2 years of age. 2. Great majority of persons attacked have the disease in mild form. 3. Gradual loss of vaccination immunity as age advances. 4. No deaths occur until later life. Note :— 1. Many cases occur under 2 years, and comparatively large proportion ofthese children die. 2. No influence to control the fatality of the disease, except the recuperative pow-er of youth, as seen from 10-30 yrs. 3. Deaths very numerous in children under 10 years, and persons over 40 years. Careful statistics collected in Japan since 1879 show quite definitelythe gradual diminution of the immunity, beginning with the second yearafter vaccination. Kitasatos table/ based on 951 cases, is as follows: SUCCESSFUL REVACCmATION AFTER: 1 year per cent. 2 years 3 years 4 years 5 years 6 years VoMr. A. M. A., March 25, 1911, p. 889. SMALLPOX AND VACCINATION 17 Weil, in 1899, reported per cent, of successful revaceinationsafter s
Size: 1254px × 1993px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorwh, bookcentury1900, bookdecade1910, booksubjecthygiene
