Depends on why they're sick. They can carry and spread viruses and such.
some frogs have been attaching other dogs and that make the dog sick
NO!!
Yes!
Yes. A sick kitten can make other cats sick.
No but its not a good idea
Dogs should not eat grass it makes them sick a lttle of it is fine it will help them but to much will make them sick
it is something sweet but chocolate can make dogs sick and sometimes kill them
The dogs do it to make them sick to get the virus out of there stomach just leave them too it it wont do them any harm
No. There are parasites in feces. Consuming feces can make dogs sick or have worms.
No it will make them sick
Yes, the ink can make them sick if ingested.
No you can't, It can make you very sick.