Preliminary investigation of a possible lung worm (Parafilaroides decorus), fish (Girella nigricans), and marine mammal (Callorhinus ursinus) cycle for San Miguel sea lion virus type 5.
Colostrum-deprived neonatal Northern fur seal pups (Callorhinus ursinus) were exposed to San Miguel sea lion virus type 5 (SMSV-5) by feeding them fish (Girella nigricans) infected with virus or fish infected with both the sea lion lung worm larvae (Parafilaroides decorus) and virus. Virus infection was demonstrated in 8 of 9 pups, and 1 of these developed a vesicular lesion on the flipper. In this sequence, P decorus larvae exposed to SMSV-5 were fed to G nigricans held at 15 C in a salt water aquarium; 32 days later, these fish were killed, then fed to the fur seal pups. The vesicle developed 22 days subsequent to this and SMSV-5 was reisolated from the lesion. The SMSV-5 was shown to persist for at least 23 days in infected neonatal fur seals. Attempts to establish P decorus infection in Northern fur seal pups were apparently unsuccessful.
D000818:Animals; D002139:Caliciviridae / Q000302:isolation & purification*; D010872:Caniformia / Q000382:microbiology*; D005393:Fish Diseases / Q000635:transmission; D005399:Fishes / Q000382:microbiology*; D008681:Metastrongyloidea / Q000382:microbiology*; D009349:Nematode Infections / Q000382:microbiology / Q000635:transmission / Q000662:veterinary*; D010850:Picornaviridae Infections / Q000382:microbiology / Q000635:transmission / Q000662:veterinary*; D046070:Sea Lions / Q000382:microbiology*