Guide to Preventing Parasites.pdf - Royal Canin Canada

2.4 Ticks
Giardia was found in 27.2% of those under the age of one year.
Cryptosporidium was found in 10.7% of those under the age of one year.
Since 1990, the Laboratoire de santé publique du Québec has been offering Québec
residents a service for identifyng ticks found on humans and animals (LSPQ, 2005). A
number of specimens have been brought back from outside the province.
Table 7. Number and species of ticks submitted to the LSPQ (1990 – 2006)
Species Number %
Ixodes cookei 5 839 51,0
Ixodes scapularis 3 050 26,6
Dermacentor variabilis 1 236 10,8
Rhipicephalus sanguineus 624 5,4
Amblyomma americanum 245 2,1
Ixodes muris 147
Dermacentor albipictus 73
Haemaphysalis leporispalustris 39
The total number of specimens received has steadily increased over the years, although
we have not been able to determine exactly why. It could be that people are more aware
of ticks and detect them more often, but there may be other very important factors as
well, such as climate warming, an increase in the number of host populations, and
transport by migratory birds.
Table 8. Number of ticks submitted to the LSPQ from 1990 until 2007
Nb of ticks
2500
2000
1500
1000
500
0
1990 1993 1996 1999 2002 2005
12
Years