1 Cat is the appropriate experimental definitive host.

2 The definitive host of Angiostrongylus cantonensis is Rattus norvegicus and intermediate host is Ampullarum crossean. Its suggest that we must take precautions against Angiostrongylus cantonensis.

3 The natural definitive host for P. proliferus is not monkeys, dogs, and cats, but rats.

4 The definitive host is the dog but it can also infect cats, wolves, coyotes , foxes and other animals, such as ferrets, sea lions and even, under very rare circumstances, humans.

5 Objective To investigate the distribution and infection situation of the definitive host of Angiostrongylus cantonensis in Fuzhou.

6 Cysts should be excised and sterilized to avoid ingestion by the definitive host.

7 Conclusion Except Pingtan, the whole Fuzhou area is the natural epidemic foci of An. cantonensis and R. norvegicus is the major definitive host.

8 Nevertheless, the supervision of dog infection should be reinforced because this definitive host constitutes an important link with human contamination.