Over the course of time,
several fecal samples were collected, and all were negative for parasites.
Puppies and kittens often show signs of illness, usually watery diarrhea, before there are oocysts in their stools, so it sometimes takes
several fecal samples to know if a puppy or kitten is infected.
So far, the evidence Oren has gathered on these hunts — a clump of hair,
several fecal samples from different areas, and some casts of footprints — has led to naught, fading like tracks in the forest.
Not exact matches
Their next step was to analyze 1300
fecal samples of wild apes (some turned out to be from gorillas) and identify
several places in which SIVcpz was widespread in chimp communities.
It is important to repeat
fecal flotations
several times, on different stool
samples, to be sure that an initial negative result was not a false negative.
A
fecal sample may be sent to a lab to try and identify the bacteria, but the results may take
several days.