LABORATORY COMPARATIVE ANALYSIS OF SEROLOGICAL AND MOLECULAR BIOLOGICAL METHODS FOR DETECTION OF MEASLES VIRUS IN BULGARIA
This study aimed to perform a comparative analysis between the frequency of detection of the measles virus in Bulgarian patients by using two types of laboratory methods - serological and molecular. Materials and Methods: The total 202 patients with two types of clinical material (serum samples...
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| Format: | Article |
| Language: | English |
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National Center of Infectious and Parasitic Diseases
2020-10-01
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| Series: | Problems of Infectious and Parasitic Diseases |
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| Online Access: | https://pipd.ncipd.org/index.php/pipd/article/view/25 |
| _version_ | 1797826143064162304 |
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| author | Ivona Andonova Radostina Stefanova Stefka Krumova |
| author_facet | Ivona Andonova Radostina Stefanova Stefka Krumova |
| author_sort | Ivona Andonova |
| collection | DOAJ |
| description |
This study aimed to perform a comparative analysis between the frequency of detection of the measles virus in Bulgarian patients by using two types of laboratory methods - serological and molecular.
Materials and Methods: The total 202 patients with two types of clinical material (serum samples and nasal swabs) were tested. The specimens were collected during the measles outbreak in Bulgaria in 2019. The serological - indirect EIA test for detection of specific IgM antibodies and molecular methods - extraction and detection of viral RNA were used.
Results: In the present study, tested Bulgarian patients were divided into 11 age groups. The majority of patients were under 9 years of age (126/202, 62%), including children under 1 years of age (31/202, 15%). Acute measles infection was confirmed by ELISA-IgM in 136/202(67%) and by RT-PCR in 138/202 (68%) of cases. The positive patients detected only by PCR methods are mainly in younger tested. In 123/202 of the patients (60,89%) measles infection was confirmed by a combined serological and molecular-biological approach. The coincidence percentage rate of results obtained is 87%, including double positive (n=123) and double negative (n=52) tests. No significant differences in the results in terms of gender and age were found.
Conclusion: The combined laboratory approach (immunoenzymatic and molecular assay of each suspected case) is a requisite for measles detection, especially before the onset of symptoms when specific Ig M antibodies could not be detected. Molecular biological techniques are basic and preferred approach in the field of modern biomedical sciences. They play an important role in the early and accurate etiological diagnosis and monitoring of viral infections, in particular the measles virus.
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| first_indexed | 2024-03-13T11:04:21Z |
| format | Article |
| id | doaj.art-5238145583444e89b917eb70da2c9282 |
| institution | Directory Open Access Journal |
| issn | 0204-9155 2815-2808 |
| language | English |
| last_indexed | 2024-03-13T11:04:21Z |
| publishDate | 2020-10-01 |
| publisher | National Center of Infectious and Parasitic Diseases |
| record_format | Article |
| series | Problems of Infectious and Parasitic Diseases |
| spelling | doaj.art-5238145583444e89b917eb70da2c92822023-05-16T09:17:19ZengNational Center of Infectious and Parasitic DiseasesProblems of Infectious and Parasitic Diseases0204-91552815-28082020-10-0148210.58395/pipd.v48i2.25LABORATORY COMPARATIVE ANALYSIS OF SEROLOGICAL AND MOLECULAR BIOLOGICAL METHODS FOR DETECTION OF MEASLES VIRUS IN BULGARIAIvona AndonovaRadostina StefanovaStefka Krumova0National Centre of Infectious and Parasitic Diseases This study aimed to perform a comparative analysis between the frequency of detection of the measles virus in Bulgarian patients by using two types of laboratory methods - serological and molecular. Materials and Methods: The total 202 patients with two types of clinical material (serum samples and nasal swabs) were tested. The specimens were collected during the measles outbreak in Bulgaria in 2019. The serological - indirect EIA test for detection of specific IgM antibodies and molecular methods - extraction and detection of viral RNA were used. Results: In the present study, tested Bulgarian patients were divided into 11 age groups. The majority of patients were under 9 years of age (126/202, 62%), including children under 1 years of age (31/202, 15%). Acute measles infection was confirmed by ELISA-IgM in 136/202(67%) and by RT-PCR in 138/202 (68%) of cases. The positive patients detected only by PCR methods are mainly in younger tested. In 123/202 of the patients (60,89%) measles infection was confirmed by a combined serological and molecular-biological approach. The coincidence percentage rate of results obtained is 87%, including double positive (n=123) and double negative (n=52) tests. No significant differences in the results in terms of gender and age were found. Conclusion: The combined laboratory approach (immunoenzymatic and molecular assay of each suspected case) is a requisite for measles detection, especially before the onset of symptoms when specific Ig M antibodies could not be detected. Molecular biological techniques are basic and preferred approach in the field of modern biomedical sciences. They play an important role in the early and accurate etiological diagnosis and monitoring of viral infections, in particular the measles virus. https://pipd.ncipd.org/index.php/pipd/article/view/25measlesRT-PCRELISA assayIgM antibodies |
| spellingShingle | Ivona Andonova Radostina Stefanova Stefka Krumova LABORATORY COMPARATIVE ANALYSIS OF SEROLOGICAL AND MOLECULAR BIOLOGICAL METHODS FOR DETECTION OF MEASLES VIRUS IN BULGARIA Problems of Infectious and Parasitic Diseases measles RT-PCR ELISA assay IgM antibodies |
| title | LABORATORY COMPARATIVE ANALYSIS OF SEROLOGICAL AND MOLECULAR BIOLOGICAL METHODS FOR DETECTION OF MEASLES VIRUS IN BULGARIA |
| title_full | LABORATORY COMPARATIVE ANALYSIS OF SEROLOGICAL AND MOLECULAR BIOLOGICAL METHODS FOR DETECTION OF MEASLES VIRUS IN BULGARIA |
| title_fullStr | LABORATORY COMPARATIVE ANALYSIS OF SEROLOGICAL AND MOLECULAR BIOLOGICAL METHODS FOR DETECTION OF MEASLES VIRUS IN BULGARIA |
| title_full_unstemmed | LABORATORY COMPARATIVE ANALYSIS OF SEROLOGICAL AND MOLECULAR BIOLOGICAL METHODS FOR DETECTION OF MEASLES VIRUS IN BULGARIA |
| title_short | LABORATORY COMPARATIVE ANALYSIS OF SEROLOGICAL AND MOLECULAR BIOLOGICAL METHODS FOR DETECTION OF MEASLES VIRUS IN BULGARIA |
| title_sort | laboratory comparative analysis of serological and molecular biological methods for detection of measles virus in bulgaria |
| topic | measles RT-PCR ELISA assay IgM antibodies |
| url | https://pipd.ncipd.org/index.php/pipd/article/view/25 |
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