Current status of taeniasis and cysticercosis in Vietnam.
Several reports on taeniasis and cysticercosis in Vietnam show that they are distributed in over 50 of 63 provinces. In some endemic areas, the prevalence of taeniasis was 0.2-12.0% and that of cysticercosis was 1.0-7.2%. The major symptoms of taeniasis included fidgeted anus, proglottids moving out of the anus, and proglottids in the feces. Clinical manifestations of cysticercosis in humans included subcutaneous nodules, epileptic seizures, severe headach, impaired vision, and memory loss. The species identification of Taenia in Vietnam included Taenia asiatica, Taenia saginata, and Taenia solium based on combined morphology and molecular methods. Only T. solium caused cysticercosis in humans. Praziquantel was chosen for treatment of taeniasis and albendazole for treatment of cysticercosis. The infection rate of cysticercus cellulosae in pigs was 0.04% at Hanoi slaughterhouses, 0.03-0.31% at provincial slaughterhouses in the north, and 0.9% in provincial slaughterhouses in the southern region of Vietnam. The infection rate of cysticercus bovis in cattle was 0.03-2.17% at Hanoi slaughterhouses. Risk factors investigated with regard to transmission of Taenia suggested that consumption of raw meat (eating raw meat 4.5-74.3%), inadequate or absent meat inspection and control, poor sanitation in some endemic areas, and use of untreated human waste as a fertilizer for crops may play important roles in Vietnam, although this remains to be validated.
Department of Parasitology, Hanoi Medical University, Vietnam.
Nguyen
N
Van De
Department of Immunology, Institute of Bio-Technology, Vietnam.
Thanh Hoa
TH
Le
Department of Parasitology, Hanoi Medical University, Vietnam.
Phan Thi Huong
PT
Lien
Department of Immunology, Institute of Bio-Technology, Vietnam.
Keeseon S
KS
Eom
D015766:Albendazole / Q000627:therapeutic use*; D000818:Animals; D000871:Anthelmintics / Q000627:therapeutic use; D000981:Antiprotozoal Agents / Q000627:therapeutic use; D002417:Cattle / Q000469:parasitology; D002418:Cattle Diseases / Q000469:parasitology; D003551:Cysticercosis / Q000188:drug therapy* / Q000453:epidemiology* / Q000469:parasitology / Q000635:transmission; D005243:Feces / Q000469:parasitology; D006801:Humans; D008460:Meat / Q000469:parasitology; D011223:Praziquantel / Q000627:therapeutic use*; D066256:Raw Foods / Q000009:adverse effects; D012307:Risk Factors; D013552:Swine / Q000469:parasitology; D013553:Swine Diseases / Q000469:parasitology; D014744:Vietnam / Q000453:epidemiology
D000871:Anthelmintics; D000981:Antiprotozoal Agents; D011223:Praziquantel; D015766:Albendazole
Taeniasis; Vietnam; cysticercosis