The spectrum of parasitic infections with emphasis on the clinico-epidemiological characteristics and risk factors among immunocompromised and immunocompetent patients at a university hospital in Northern India.

INTRODUCTION: Intestinal parasitic infections pose a substantial threat to public health and are a huge burden to the economic development of a developing country. We aimed to identify the spectrum of intestinal parasitic infections with an emphasis on demographic and clinical characteristics observed among immunocompromised and immunocompetent patients.

MATERIALS AND METHODS: This observational study was performed in the Parasitology section of the Department of Microbiology from January 2022 to July 2022. A total of 2628 stool samples were obtained from patients presenting with chief complaints of abdominal pain, distension, vomiting, and foul-smelling feces. All the clinical and diagnostic data of the patients enrolled in the above-mentioned period were extracted from the ward files, hospital electronic records, and laboratory registers.

RESULT: A total of 2628 stool samples were sent to the Parasitology section of the Department of Microbiology. Out of the above-mentioned samples, 70 (70/2628, 2.66%) samples yielded gastrointestinal parasites on microscopic examination. The mean age of the patients included in our cohort study was 32.53 ± 16.21 years with a male predominance of 72.86% (51/70, 72.86%). The most common gastrointestinal parasite identified from stool samples was Giardia lamblia (61/70, 87.14%). All cases of opportunistic gastrointestinal infection caused by Cryptosporidium spp . (4/70, 5.71%) in our study cohort were found to infest the immunocompromised patients.

CONCLUSION: This study determines the spectrum of intestinal parasitic infections among the immunocompromised and immunocompetent individuals and guides physicians in starting appropriate anti-parasitic treatment along with the instillation of strict hand hygiene techniques.