Parasitology Statistics Toronto 1998
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC TOTAL
                         
E. histolytica/dispar[1] 35 16 22 30 23 23 35 24 26 33 23 21 311
E. coli 63 62 82 75 79 90 81 94 92 90 63 46 917
E. hartmanni 27 51 41 27 37 59 41 26 49 49 40 23 470
E. polecki               3         3
E. nana 119 98 138 130 153 170 230 116 131 112 122 80 1599
I. buetschlii 19 15 39 22 13 23 25 23 28 25 10 5 247
G. lamblia 42 54 53 26 33 65 41 70 50 60 43 38 575
D. fragilis 79 96 89 97 105 99 105 88 97 110 72 51 1088
B. coli                         0
C. mesnili 8 3 5 4 16 9   6 7 2 1 9 70
E. hominis 4 2 7 3   2 4 2 1     1 26
R. intestinalis                         0
T. hominis   1       3 1       3 3 11
T. vaginalis                         0
Unid. Flagellates[2] 2 1 1           3       7
C. parvum   2     6 1   3   3     15
C. cayetanensis       4 9 47[3]   2 3       65
Microsporidium[4]       3                 3
I. belli                         0
S. hominis                         0
                           
P. pubis[5] 3         2 1     1 1   8
P. humanus[6] 7     3 1   2   2 1 2 2 20
Hardbodied ticks[7]       1 6 4 4 2   1 2   20
S. scabei                         0
Arthropods-other[8]                         0
                           
A. lumbricoides 4 4 6 4 10 1 14   4 1 3 2 53
T. trichiura 5 1 1   11 2 3 3   2 2 3 33
C. sinensis   3     3 3 7     1 4 1 22
D. latum 1                 2     3
E. vermicularis 14 14 17 18 12 21 15 19 21 8 13 6 178
Fasciola/Fasciolopsis                         0
H. nana 4   2 3 3 2 3 1         18
H. diminuta                         0
Hookworm 2 3 4 3 6 1   1 3   6 3 32
S. mansoni                       1 1
S. haematobium   1                     1
S. japonicum                         0
S. stercoralis     1     4 1 1   1 3   11
Taenia species   2   6 2               10
Trichostrongylus species           6             6
                           
Blastocystis hominis[9]     203 182 325 442 345 311 257 220 208 191 2684
                           
Total Specimens[10] 3681 3407 3671 3574 3507 4612 3940 3869 3416 3327 2710[11] 2345 42059
Total Positive Specimens 339 339 382 344 407 467 385 392 393 376 308 236 4368
Percent Positive[12] 9.2 10.0 10.4 9.6 11.6 10.1 9.8 10.1 11.5 11.3 11.4 10.1 10.4
Recovery Rate - Percent[13] 11.9 12.6 13.8 12.8 15.1 13.8 15.6 12.5 15.1 15.1 15.2 12.6 13.8

[1]
Differentiation between E. histolytica and E. dispar not performed at this time.
[2]
Identification criteria based on typical flagellate trophozoite with no cyst form seen.
[3]
Outbreak of
C. cayetanensis  due to imported fruit from Central America
[4]
Enterocytozoon bieneusi
[5]
Includes  both nits and adults.
[6]
Includes both nits and adults.
[7]
Although Ixodes scapularis and other Lyme disease transmitting ticks are identified I. cookei and
D. variabilis are the most common.  For a complete explanation visit
http://www.practicalscience.com
[8]
Arthropods not listed may include various diptera, larva and fleas.
[9]
B. hominis is not counted in total specimens, total positive specimens or percent positive.
[10]
Including total O/Ps, total pinworm preparations and total arthropod and worm identifications.
[11]
November 1, 1998

OAML Guidelines for the collection of stool for O/P mailed.  This guideline reduces to 1 specimen from 3,  previously recommended.

[12]
Calculated at least quarterly.  Total number of positive specimens divided by the total number of specimens examined.  A ratio change of greater than 1.5 should be investigated.
[13]
Calculated at least quarterly.  Total parasite species identified divided by the total number of specimens examined.  A ratio change of 1.5 should be investigated.