Abstract
Giardiasis is an important protozoan disease caused by Giardia and manifested as life-threatening diarrhea in animals and humans worldwide. No study has performed to see zoonotic epidemiology and diversity of Giardia in animals in Bangladesh. Hence, there is a room to characterize Giardia protozoan parasite in animals to find out their roles as a source of human infection. To address this hurdle, fecal samples of 100 goat kids were genotyped by nested PCR amplification of β-giardin gene fragment followed by sequencing and analysis. The total prevalence of Giardia in goat kids was 3% (3/100) and the infection is more widespread in younger, Black Bengal breed and female goat kids. Further analysis of β-giardin gene locus has shown and clustered the Giardia in Assemblage E rather than Assemblages A and B. It suggests the low zoonotic transmission frequency from the goat kids and has least epidemiological significance to humans. Further study on this field is prerequisite in terms of broad geographical areas, age groups, sex and evaluates zoonotic significance along with genetic diversity in other host species as well.
Highlights
Giardia is a single celled protozoan parasite and frequently causes diarrheal diseases among many animals like domestic, cats, dogs, wild lives and the phenomenon is called giardiasis [1]
The β-giardin gene was amplified from individual genomic DNA samples by nested PCR assay during this study
Molecular analysis revealed that the prevalence of Giardia was only 3% in goat kids and represent sporadic cases occurring in this part of the country (Figure 1)
Summary
Giardia is a single celled protozoan parasite and frequently causes diarrheal diseases among many animals like domestic, cats, dogs, wild lives and the phenomenon is called giardiasis [1]. Robertson has showed more than 30% young ruminants’ infections caused by G. intestinalis might be a major public health concern in both nation and society. It is because zoonotic transmission may occur from infected animals to humans through many ways like contamination of aquatic flora and fauna, environment and so on, and directly enter into human food chains [4]. Giardiasis caused by G. intestinalis is considered as a zoonotic disease, since it contaminates and infects zoonatic living systems
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