M 60
EXAMINATION OF STOOLS FOR INTESTINAL PARASITES.
Table XXXIX.
European Indian Chinese Total Ascaris 18 12 258 288 Clonorchis 6 223 229 Trichuris 99 111 Ankylostoma 1 8 75 84 Enterobius 1 1 2 E. histolytica 7 55 62 Fasciolopsis 6 6 Multiple infestation 1 241 251 Negative 367 104 1,496 1,967 Grand total 417 129 2,454 3,000(e) Serology.
252. (viii) The Kahn reaction:-Twenty thousand, three hundred and twenty-eight sera were tested. The results are shown in the table.
EXAMINATION OF BLOOD SERA FOR SYPHILIS.
Table XL.
European Indian Chinese Total M. F. M. F. M. F. Strong positive 38 3 95 2,201 994 3,331 Positive 31 1 41 1 1,111 469 1,653 Weak positive 20 2 24 692 237 975 Doubtful 16 3 34 752 271 1,076 Negative 574 72 696 16 7,387 4,548 13,293 Grand total 679 81 890 16 12,143 6,519 20,328253. (ix) Agglutination tests:-Three thousand one hundred and thirty sera were examined for the presence of agglutinins against various organisms. Eight hundred and twenty-nine were positive for some specific organism.