1.   There are several important parasites of domestic mammals and birds in this superfamily of bursate nematodes.

2.   Domestic mammals include pets like hamsters, cats and ferrets as well as guide dogs and guard dogs.

3.   Domestic mammals, including cats, cattle and dogs, can also get rabies.

4.   The quarantine law, which applies to all domestic mammals, dates from a time when rabies was a serious problem.