Some risk factors of human anthrax disease: A case - control study in Ha Giang and Son La provinces, Vietnam, 2019 – 2022

Tóm tắt

A case - control study was conducted to identify some anthrax risk factors in humans in Ha Giang and Son La in 2019 - 2022. The study found that people living in areas where anthrax cases were reported were 5.6 times more likely to develop anthrax than those without reported cases (95% CI: 1.78 - 17.8). Persons with a history of exposure to livestock within a week before disease onset were 20.81 times more likely to develop the disease than the non - exposed group (95% CI: 6.18 - 70.09). The case living next to the livestock barn had a risk of anthrax 3.44 times higher than other cases (95% CI: 1.15 - 10.24). The group that did not handle manure was 4 times more likely to develop anthrax than those that did manure treatment (95% CI: 1.31 - 12.25). The multivariable logistic regression model showed that a history of exposure to cattle within one week before illness and no handling of manure was a risk factor for an increased likelihood of anthrax, corresponding to OR = 226.89 (95% CI: 8.38 - 6,141.73) and OR = 36.7 (95% CI: 2.39 - 564.45). Therefore, it is necessary to take measures on communication, not to directly contact sick and dead cattle, not to contact the soil around the barn area, and to handle cattle manure to prevent anthrax.