A survey of bovine cysticercosis/human taeniosis In Northern Turkana District, Kenya

Asaava LL, Kitala PM, Gathura PB, Nanyingi MO, Muchemi G, Schelling E. "A survey of bovine cysticercosis/human taeniosis In Northern Turkana District, Kenya.". 2009.


Bovine cysticercosis is a zoonosis that is mainly of socioeconomic ,H1(1 public health impor, ranee. A survey of this disease was.carried ou t in Northern Turkana District, Kenya to estimate the prevalence through both serology and meat inspection. to determine the prevalence or the adult tapeworm in the human definitive 11Ost, and to determine risk factors for cattle seropositivity. This information is of public health importance and will be of use inassessing economic losses due to downgrading, refrigeration or condemnation of infested carcasses. The study area was stratified into the three livestock grazing regions of Oropoi to the south, Lokichoggio--Mogilla centrally and Kibish in the north for the purposes of rhe serological and questionnaire (n = 53 herd owners) data. Five ada/wars (grazing units) were selected and 34, 63. 49, 75 and 571 cattle serum samples obtained from these. The slaughter slabs of Lokichoggio and Kakurna were visited and 188 serum samples were obtained from slaughter cattle and compared to results of meat inspection. Human stool samples were collected in each of the three grazing areas and 66, 97 and 78 samples were obtained. The seroprevalence of cysticercosis in cattle was estimated at 16.7% (95% CI 13-20,9%) using a secretory-excretory antigen detection ELISA. There was poor agreement between meat inspection and serology (I< = 0.025; P = 0.2797). The prevalence of taeniasis was estimated as 2.5% (95% CI 0.8-5.6%) by microscopy. A backwards elimination logistic regression analysis indicated that the grazing unit (Ada/war), the deworrning history of household members and the distance (>2km) of gl-azing fields from the homestead were significant expla-natory variables for cattle being found to be positive on serology. An intra-cluster correlation coefficient (ICC) of 0,07 (0.02-0.12); P < 0.0001 was calculated for bovine cysticercosis in this area

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