M 128
AGGLUTINATION TESTS.
EUROPEAN. INDIAN. CHINESE.
ORGANISMS.
Total.
Pos. Neg. Pos. Neg. Pos. Neg.
B. Typhosus 50 127 5 36 186 510
B. Para. A. 3 174 41 3 693 914
B. Para. B. 174 41 4 688
B. Para. C. 1 1
B. Melitensis 2
B. Abortus 4 34 3 4
Weil Felix reaction 1 1 ...
Grand Total 56 481 5 118 198 1,893 923
C.-BACTERIOLOGICAL EXAMINATIONS.
(1) Faeces. Three hundred stools were cultured for the presence of pathogenic organisms. The table shows the distribution of the different types of infection present. Infections with B. dysenteriae (Schmitz) are seen to be by no means uncommon as a cause of dysentery in Hong Kong.
STOOLS EXAMINED FOR ORGANISMS.
European. Indian. Chinese.
Organisms.
Total.
Pos. Neg. Pos. Neg. Pos. Neg.
Typhoid group. 2 24 1 99 126
B. Dysenteriae (Group). 61 7 38 106
B. Dysenteriae (Flexner) 21 3 31 55
B. Dysenteriae (Shiga) 1 3 4
B. Dysenteriae (Schmitz). 5
B. Cholera 2 1 1 72
Grand Total 28 85 4 9 36 138 300