Parasitology Statistics Ottawa 1998
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC TOTAL
                         
E. histolytica/dispar[1] 19 10 9 17 8 9 26 19 7 7 13 2 146
E. coli 32 32 49 36 41 40 41 31 21 48 31 14 416
E. hartmanni 17 27 30 23 18 30 30 32 27 36 28 12 310
E. polecki             3     3     6
E. nana 65 68 71 63 82 64 62 56 76 71 55 37 770
I. buetschlii 9 12 6 6 8 9 9 1 12 16 5 11 104
G. lamblia 26 23 40 20 22 42 17 24 28 38 25 33 338
D. fragilis 55 75 61 58 43 54 53 65 40 45 60 38 647
B. coli                         0
C. mesnili 7 6 3 6 10 6 3 5   7 14 1 68
E. hominis 1 4 6 3 2 3     1 5 1 2 28
R. intestinalis                         0
T. hominis       4   3 3     4     14
T. vaginalis                         0
Unid. Flagellates[2]                   2     2
C. parvum   5 6   3               14
C. cayetanensis           3     2       5
Microsporidium[3]                         0
I. belli                         0
S. hominis                         0
                           
P. pubis[4]                 1       1
P. humanus[5]             2 3       1 6
Hardbodied ticks[6] 1       2 3 2       1   9
S. scabei           1             1
Arthropods-other[7]             2 1 1       4
                           
A. lumbricoides 1   2   4 4 3 4       3 21
T. trichiura 3       2 6 4     8 4   27
C. sinensis         1   2           3
D. latum                   3 1   4
E. vermicularis 6 2 9 1 7 5 7 4 5   10 2 58
Fasciola/Fasciolopsis                         0
H. nana 3 3 5     3   3     3   20
H. diminuta                         0
Hookworm     4 2   3             9
S. mansoni           3             3
S. haematobium                     1   1
S. japonicum                         0
S. stercoralis             4       2   6
Taenia species   3       6     7       16
Trichostrongylus species                         0
                           
Blastocystis hominis[8]     66 79 87 109 86 95 73 114 104 41 854
                           
Total Specimens[9] 1181 1345 1620 1593 1550 1544 1529 1474 1713 1420 1308[10] 1050 17327
Total Positive Specimens 183 206 229 183 198 209 203 188 218 196 197 116 2326
Percent Positive[11] 15.5 15.3 14.1 11.5 12.8 13.5 13.3 12.8 12.7 13.8 15.1 11.0 13.4
Recovery Rate - Percent[12] 20.7 20.1 18.6 15.0 16.3 19.2 17.9 16.8 13.3 20.6 19.4 14.9 17.6

[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]
Enterocytozoon bieneusi
[4]
Includes  both nits and adults.
[5]
Includes both nits and adults.
[6]
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
[7]
Arthropods not listed may include various diptera, larva and fleas.
[8]
B. hominis is not counted in total specimens, total positive specimens or percent positive.
[9]
Including total O/Ps, total pinworm preparations and total arthropod and worm identifications.
[10]
November 1, 1998

OAML Guidelines for the collection of stool for O/P mailed.  This guideline reduces to 1 specimen from 3,  previously recommended.
[11]
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.
[12]
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.