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1.
Vet World ; 15(1): 110-118, 2022 Jan.
Article in English | MEDLINE | ID: mdl-35369577

ABSTRACT

Background and Aim: Toxoplasma gondii is an intracellular protozoan that infects humans and animals. This study aimed to estimate the seroprevalence of T. gondii and the associated alterations in hematology and serum biochemistry of one-humped camels (Camelus dromedarius) in Mianwali district, Pakistan. Materials and Methods: A total of 350 blood samples were obtained from male and female camels of different ages (≤3 years old, 4-6 years old, and ≥7 years old). To validate T. gondii antibodies, the collected samples were subjected to indirect enzyme-linked immunosorbent assay using purified recombinant micronemal protein 3 as an antibody catching antigen. Results: The prevalence of T. gondii was 50.2% higher in male camels than in female camels (16.5%) (p<0.001). Furthermore, the prevalence of T. gondii in camels was directly proportional to age (p<0.001). It was 63.33% (57/90) in camels of ≥7 years of age, 32.54% in 4-6 years old age group, and 23.08% in ≤3 years old age group. The hematological analysis of infected camels revealed a significant increase in the values of glucocorticoid-remediable aldosteronism, lymphocyte percentage, monocyte percentage (MONO%), corpuscular hemoglobin (MCH), and procalcitonin. Furthermore, substantially higher levels of liver enzymes alanine aminotransferase, aspartate aminotransferase, and the macro-mineral potassium were found in the serum of T. gondii-infected camels. Conclusion: The seropositivity of T. gondii is directly associated with the age and sex of camels, which may be considered as potential risk factors. Furthermore, T. gondii infection directly impacts the hemato-biochemistry of infected camels.

2.
Parasitol Res ; 118(1): 307-316, 2019 Jan.
Article in English | MEDLINE | ID: mdl-30413878

ABSTRACT

Toxoplasma (T.) gondii is an important zoonotic protozoan infecting humans and a wide range of animals. In this study, we determine the seroprevalence and risk factors associated with the seroprevalence of T. gondii in one-humped camels (Camelus dromedarius) in Pakistan. Camels are still an important mean of transportation in some desert areas in Pakistan. In addition, they are the main source of meat and milk for people in those regions; therefore, they have the potential to transmit T. gondii to humans. In order to estimate the seroprevalence of T. gondii, a total of 897 sera samples were collected from camels in the Thal (n = 359) and Cholistan (n = 440) deserts, along with other districts of Chakwal (n = 44) and Faisalabad (n = 54) Punjab, Pakistan, through convenient and snowball sampling techniques. These samples were then analyzed by an indirect enzyme-linked immune-sorbent assay (ELISA) for the presence of T. gondii-specific antibodies, using purified recombinant micronemal protein 3 (MIC3) as an antibody-catching antigen. Our results showed an overall seroprevalence of T. gondii as 40.1% (Thal = 45%; Cholistan = 35.9%; other districts = 33.7%). Risk factor analysis suggested that infection rate was higher in older animals (70.6%). In addition, female camels carried frequent infection (48.8%) than males (22.4%). What's more, female animals having abortion history showed even higher infection rate (75%) compared to pregnant (68.4%) and non-pregnant (42.4%) animals. Our results reported high seroprevelance of T. gondii in camels in Pakistan which provided important information with respect to public health and disease controls.


Subject(s)
Antibodies, Protozoan/blood , Camelus/parasitology , Toxoplasma/isolation & purification , Toxoplasmosis, Animal/parasitology , Animals , Female , Male , Pakistan/epidemiology , Risk Factors , Seroepidemiologic Studies , Toxoplasma/classification , Toxoplasma/genetics , Toxoplasma/immunology , Toxoplasmosis, Animal/blood , Toxoplasmosis, Animal/epidemiology
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