Table 4.

Published surveys of Taeniasis/Cysticercosis in humans in Vietnam.

Citation	Study date	Study location	Type of study	Details	Sample size	Overall prevalence; additional observations
Erhart et al. (2002)	1999	Bac Ninh (Red River Delta)	Survey using serum cysticercosis prevalence	Healthy individuals, all ages	210	5.7%; 5/12 seropositive individuals reported history of epilepsy.
Verle et al. (2003)	1999	Hoa Binh (north-western Vietnam)	Survey of gastrointestinal helminth infection	6 ethnic groups	526 households (2,522 samples)	Taenia eggs detected in 0.1% stool samples. One person had subcutaneous nodules that were diagnosed as cysticercosis by biopsy
Somers et al. (2007)	2002–2003	Northern Vietnam (14 provinces)	Hospital-based	Patients	65 patients from 14 hospitals	55.4% specimens identified as T. asiatica; 38.5% T. saginata and 6.2% T. solium tested by mitochondrial 12S rDNA by PCR
Somers et al. (2006)	2003–2004	Bac Kan (far northern province); Ha Tinh (central Vietnam); Hai Duong (Red River Delta)	Survey using serum (prevalence of cysticercosis) and faeces (prevalence of taeniasis)	Healthy individuals from 3 areas: 1. Bac Kan (rural, mountainous) 2. Ha Tinh (rural, coastal) 3. Hai Duong (peri-urban, costal)	303 (mountainous region); 179 (rural coastal region); 229 (peri-urban, coastal region)	Study investigating helminth infections. 5.3% (Bac Kan); 0.6% (Ha Tinh); 0% (Hai Duong)