AnnualReport-1934 — Page 467

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C.-BACTERIOLOGICAL EXAMINATIONS.

(1) Faeces. Culture was carried out on four hundred and eighty-eight stools for the presence of pathogenic organisms.

The results are not without interest. If the figures for this year are taken in conjunction with those for 1933, a group is obtained of a size worth statistical consideration. The stools shown under the heading "Typhoid Group" and "B. Cholerae" are excluded, the former representing specimens sent from convalescents, food handlers, etc., and the latter from cholera suspects. The remainder, 448 specimens, represent stools sent for examination from cases showing clinical symptoms of dysentery, the great majority with the typical cellular exudate. Of this group, 192 or 42.85% gave cultures of organisms of known pathogenicity as follows:

B. dysenteriae, Flexner 153 79.68% B. Shiga 14 7.29% Schmitz 25 13.02%

These figures may be reasonably taken to represent the incidence of the different types of bacillary infection met with in Hong Kong. The total percentage of positive results obtained, namely 42.85%, is high when it is noted that the stools are received in a condition far from fresh.

European Indian Chinese Total Organisms Pos. Neg. Pos. Neg. Pos. Neg. Typhoid group 4 16 1 7 183 211 B. Dysenteriae (Group) 65 150 215 B. Dysenteriae (Flexner) 5 80 98 20 3 75 B. Dysenteriae (Shiga) 3 7 10 B. Dysenteriae (Schmitz) 2 2 14 18 B. Cholera 1 1 Grand Total 29 81 LO 5 6 103 264 488

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C.-BACTERIOLOGICAL EXAMINATIONS. (1) Faeces. Culture was carried out on four hundred and eighty-eight stools for the presence of pathogenic organisms. The results are not without interest. If the figures for this year are taken in conjunction with those for 1933, a group is obtained of a size worth statistical consideration. The stools shown under the heading "Typhoid Group" and "B. Cholerae" are excluded, the former representing specimens sent from convalescents, food handlers, etc., and the latter from cholera suspects. The remainder, 448 specimens, represent stools sent for examination from cases showing clinical symptoms of dysentery, the great majority with the typical cellular exudate. Of this group, 192 or 42.85% gave cultures of organisms of known pathogenicity as follows: B. dysenteriae, Flexner 153 79.68% B. Shiga 14 7.29% Schmitz 25 13.02% These figures may be reasonably taken to represent the incidence of the different types of bacillary infection met with in Hong Kong. The total percentage of positive results obtained, namely 42.85%, is high when it is noted that the stools are received in a condition far from fresh. European Indian Chinese Total Organisms Pos. Neg. Pos. Neg. Pos. Neg. Typhoid group 4 16 1 7 183 211 B. Dysenteriae (Group) 65 150 215 B. Dysenteriae (Flexner) 5 80 98 20 3 75 B. Dysenteriae (Shiga) 3 7 10 B. Dysenteriae (Schmitz) 2 2 14 18 B. Cholera 1 1 Grand Total 29 81 LO 5 6 103 264 488
Baseline (Original)
M 109 C.-BACTERIOLOGICAL EXAMINATIONS. (1) Faeces. Culture was carried out on four hundred and eighty-eight stools for the presence of pathogenic organisms. The results are not without interest. If the figures for this year are taken in conjunction with those for 1933 a group is obtained of a size worth statistical consideration. The stools shown under the heading "Typhoid Group" and "B. Cholerae" are excluded, the former representing specimens sent from con- valescents, food handlers, etc. and the latter from cholera suspects. The remainder, 448 specimens, represent stools sent for examination from cases showing clinical symptoms of dysen- tery, the great majority with the typical cellular exudate. Of this group, 192 or 42.85% gave cultures of organisms of known pathogenicity as follows: B. dysenteriae, Flexner B. 21 B. Shiga Schmitz " 79.68% 7.29% 13.02% These figures may be reasonably taken to represent the incidence of the different types of bacillary infection met with in Hong Kong. The total percentage of positive results obtained, namely 42.85% is high when it is noted that the stools are received in a condition far from fresh. STOOLS EXAMINED FOR ORGANISMS. European. Indian. Chinese. Organisms. Total. i Pos. Neg. Pos. Neg. Pos. Neg. Typhoid group.. 4 16 1 7 183 211 B. Dysenteriae (Group). 65 5 80 150 B. Dysenteriae (Flexner)..... 20 3 75 98 B. Dysenteriae (Shiga).. 3 -J 7 10 : B, Dysenteriae (Schmitz) 2 2 14 18 B. Cholera.. 1 1 Grand Total 29 81 LO 5 6 103 264 488
2026-05-09 18:33:12 · Baseline
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M 109

C.-BACTERIOLOGICAL EXAMINATIONS.

(1) Faeces. Culture was carried out on four hundred and eighty-eight stools for the presence of pathogenic organisms.

The results are not without interest. If the figures for this year are taken in conjunction with those for 1933 a group is obtained of a size worth statistical consideration. The stools shown under the heading "Typhoid Group" and "B. Cholerae" are excluded, the former representing specimens sent from con- valescents, food handlers, etc. and the latter from cholera suspects. The remainder, 448 specimens, represent stools sent for examination from cases showing clinical symptoms of dysen- tery, the great majority with the typical cellular exudate. Of this group, 192 or 42.85% gave cultures of organisms of known pathogenicity as follows:

B. dysenteriae, Flexner

B.

21

B.

Shiga

Schmitz

"

79.68%

7.29%

13.02%

These figures may be reasonably taken to represent the incidence of the different types of bacillary infection met with in Hong Kong. The total percentage of positive results obtained, namely 42.85% is high when it is noted that the stools are received in a condition far from fresh.

STOOLS EXAMINED FOR ORGANISMS.

European.

Indian.

Chinese.

Organisms.

Total.

i Pos. Neg. Pos. Neg.

Pos. Neg.

Typhoid group..

4

16

1

7 183

211

B. Dysenteriae

(Group).

65

5

80

150

B. Dysenteriae

(Flexner)..... 20

3

75

98

B. Dysenteriae

(Shiga)..

3

-J

7

10

:

B, Dysenteriae

(Schmitz)

2

2

14

18

B. Cholera..

1

1

Grand Total

29 81

LO

5

6

103

264

488

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