Freshwater Aquaculture Nurseries and Infection of Fish with Zoonotic Trematodes, Vietnam

Details

• Alternative Title:
  Emerg Infect Dis
• Personal Author:
  Phan, Van Thi ; Ersbøll, Annette Kjær ; Nguyen, Thanh Thi ; Nguyen, Khue Viet ; Nguyen, Ha Thi ; Murrell, Darwin ; Dalsgaard, Anders
• Description:
  Residents of the Red River Delta region of northern Vietnam have a long tradition of eating raw fish. Fish-borne zoonotic trematodes (FZTs) are estimated to infect ≈1 million persons in Vietnam. It remains uncertain at what stages in the aquaculture production cycle fish become infected with FZTs. Newly hatched fish (fry) from 8 hatcheries and juveniles from 27 nurseries were therefore examined for FZT infection. No FZTs were found in fry from hatcheries. In nurseries, FZT prevalence in juveniles was 14.1%, 48.6%, and 57.8% after 1 week, 4 weeks, and when overwintered in ponds, respectively. FZT prevalence was higher in grass carp (p<0.001) than in other carp species. Results show that nurseries are hot spots for FZT infections in fish. Thus, sustainable FZT prevention strategies must address aquaculture management practices, particularly in nurseries, to minimize the risk of distributing infected juveniles to grow-out ponds and, subsequently, to markets for human consumption.
• Subjects:
  • Animals
  • Aquaculture
  • Cross-Sectional Studies
  • Fish Diseases
  • Fishes
  • Fresh Water
  • Humans
  • Metacercariae
  • Parasite Egg Count
  • Trematoda
  More +
• Source:
  Emerg Infect Dis. 16(12):1905-1909.
• Document Type:
  Journal Article
• Place as Subject:
  Vietnam
• Volume:
  16
• Issue:
  12
• Download URL:
  https://stacks.cdc.gov/view/cdc/24255/cdc_24255_DS1.pdf
• File Type:
  [PDF - 136.91 KB]
• Collection(s):
  Emerging Infectious Diseases
• Main Document Checksum:
  urn:sha256:783f5366e26146cea43a40f467335d6b1cae7b54cd16edfd3d14b6b605403a01