Prevalence of intestinal parasites and associated risk factors in HIV positive and negative patients in Northwest Region, Cameroon

Epidemiological understanding of intestinal parasitic infections is essential for the effective management of HIV infection. Therefore, this study was designed to assess the burden of intestinal parasites and associated risk factors. A cross-sectional study was conducted from May to December 2020 during which 200 HIV positive and 200 HIV negative participants were recruited. A total of 400 stool and venous blood samples were collected and used to identify the different intestinal parasites and for HIV diagnosis and viral load determination respectively. Results obtained revealed that the overall prevalence of intestinal parasites was 11% (44/400). Intestinal parasitosis was significantly (p = 0.025) higher in HIV-positive individuals 14.5% (29/200). Similarly, the prevalence of multiple parasitic infection 4.5% (18/400) and opportunistic helminths 3% (6/400) were insignificantly (p > 0.05) higher among HIV-positive individuals. Furthermore, prevalence of intestinal parasites was significantly (p = 0.004) greater in patients with viral load of > 1000 copies/mL 24.3% (13/46). Age group > 65 years, self-employment, living in Sub-urban areas, being HIV positive, primary level of education, use of potable tap water, and the use of water system toilets for faeces disposal were identified as associated risk factors to intestinal parasites. Intestinal parasites remain public health concern among patients with HIV. Prompt and effective antiretroviral treatment is required to reduce the intensity of the parasite.

Automated summary

The study found a higher prevalence of intestinal parasites in HIV-positive individuals, especially those with higher viral load. Factors such as age over 65, living in suburban areas, self-employment, and primary education level were identified as associated risk factors for intestinal parasite infection.