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Iranian Journal of Parasitology، جلد ۸، شماره ۴، صفحات ۶۰۸-۶۱۶
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عنوان انگلیسی The necessity of confirmatory testing in serodiagnosis of toxoplasmosis in iran.
چکیده انگلیسی مقاله Background: Toxoplasma specific IgM antibodies; the common serologic marker in diagnosis of acute toxoplasmosis has its own limitations. Confirmatory testing with other markers, introduced as a complementary tool in distinguish acute and chronic infections is unusual in Iran. In the present study, we investigated the cor-relation between the results of IgM ELISA, IgA ELISA, and IgG avidity tests in the diagnosis of toxoplasmosis to demonstrate the necessity of confirmatory testing in serodiagnosis of infection in the country. Methods: A total of 107 positive Toxoplasma IgG and IgM sera were obtained from patients referred to private laboratories and stored at -20 ºC for futures use. Sero-logic tests were set up in duplicate to analyze the serum levels of IgG, IgM, IgA, and IgG avidity antibodies using commercial ELISA kits. The results were pre-sented as semi quantitative for IgG, IgM and IgA ELISA, and Relative Avidity In-dex in percentage for IgG avidity test. Pearson’s correlation coefficient (r p ) was applied to analyze the data. Results: Of 107 serum samples, T. gondii specific IgM and IgA antibodies were positive in 67.3% and 53.3%, respectively. Besides, 29.9% of the sera displayed low avidity for IgG antibodies. The r p was - 0.572 ( P < 0.01) between the IgG avidity and IgM ELISA, - 0.364 between the IgG avidity and IgA ELISA ( P < 0.01), and 0.564 between the IgM and IgA ELISA ( P < 0.01). Conclusion: The study strongly highlights the necessity of confirmatory testing in differential diagnosis of acute and chronic toxoplasmosis in Iran.
کلیدواژه‌های انگلیسی مقاله ELISA,IgG Avidity,Iran,Toxoplasma gondii
نویسندگان مقاله مهرزاد سرایی | mehrzad saraei
dept. of medical parasitology and mycology, school of medicine, qazvin university of medical sciences, qazvin, iran and cellular and molecular research center, qazvin university of medical sciences, qazvin, iran and reference laboratory, qazvin university of medical sciences, qazvin, iran.

سازمان اصلی تایید شده: دانشگاه علوم پزشکی قزوین (Qazvin university of medical sciences)

سیده زینب فتاحی | seyedeh zeinab fattahi
reference laboratory, qazvin university of medical sciences, qazvin, iran.

سازمان اصلی تایید شده: دانشگاه علوم پزشکی قزوین (Qazvin university of medical sciences)

مجتبی شهنازی | mojtaba shahnazi
dept. of medical parasitology and mycology, school of medicine, qazvin university of medical sciences, qazvin, iran.

سازمان اصلی تایید شده: دانشگاه علوم پزشکی قزوین (Qazvin university of medical sciences)

افشین افشاری | afshin afshari
dept. of microbiology and immunology, school of medicine, qazvin university of medical sciences, qazvin, iran.

سازمان اصلی تایید شده: دانشگاه علوم پزشکی قزوین (Qazvin university of medical sciences)

صفر علی علیزاده | safar ali alizadeh
dept. of pathobiology, school of public health and institute of public health research, tehran university of medical sciences, tehran, iran.

سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)

حسن جهانی هاشمی | hassan jahanihashemi
dept. of community medicine, school of medicine, qazvin university of medical sciences, qazvin, iran.

سازمان اصلی تایید شده: دانشگاه علوم پزشکی قزوین (Qazvin university of medical sciences)

نشانی اینترنتی http://ijpa.tums.ac.ir/index.php/ijpa/article/view/448
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