Thursday 29 January 2015

Why Do We Recommend Fecal Tests?



At Streetsville Animal Hospital we recommend fecal tests on 12 week old puppies and kittens as well as annual testing on dogs and outdoor cats.  So why does Dr. Dunn recommend fecal checks?  What are we looking for in there? When we check your pet’s stool we are looking for the larvae of intestinal parasites which can only be seen under a microscope.  An undetected burden of parasites can cause vomiting, diarrhea, a poor hair coat, scooting and irritation around the back end and dangers to humans as well.  There are many different parasites but the following are some of the most common parasites we diagnose and how they are transmitted.

Roundworms:
Roundworms are the most common intestinal parasite.  In fact, approximately 80% of puppies and kittens are born with them as they are often transmitted through Mom.  These worms can also be transmitted through ingestion after they have been passed in an infected animal’s stool.  Heavy burdens can cause diarrhea, vomiting as well as a potty abdomen in puppies and on occasion in adult dogs as well.  These worms are zoonotic which means they are also transferrable to humans.  A roundworm infection in a human will manifest as a skin or an ocular issue and children are specifically at risk.  

                                                               Roundworm Larvae

Hookworms:
Hookworms can be transmitted to cats and dogs four ways: orally, through the skin, through Mom’s milk as well as through Mom’s placenta before birth.  These little guys can lead to anemia, poor appetite, diarrhea and failure to thrive in puppies and kittens.  Although adult hookworms do not infect humans intestinally, their larvae can burrow into the skin and cause itch and irritation.

 Hookworm Larvae

Coccidia:
Coccidia are single celled organisms - they live in the intestinal tract and are transmitted through ingestion.  Adult dogs often do not show signs of this parasite but signs can be dramatic in puppies and kittens presenting as watery diarrhea, abdominal distress and vomiting.  The type of coccidia dogs and cats contract is not transmissible to humans.

                                                               Coccidia Oocysts


Tapeworms:
There are two different tapeworms that cats and dogs are most susceptible to.  One is through the ingestion of an infected flea and the other is through the ingestion of an infected rodent.  Tapeworms can lead to weight loss when they occur in large numbers, especially to puppies.  They are diagnosed when owners notice segments around the anus that look like little pieces of rice.  After a segment is submitted to us, we are then able to examine it under a microscope to confirm that it is a tapeworm as well as which type.  Tapeworms are transmissible to humans but it is not very likely due to the fact that an infected host must be ingested by a human for an infestation to start – ingestion of the segments does not lead to an infestation.


Tapeworm segment



All of these intestinal parasites are treated with oral medication and as long as strict hygiene is enforced they should not pose a threat to owners. Please let us know if you have any questions or would like any further information on fecal testing or parasites, we would be more than happy to help!

- Jennifer