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Biotechnology & Biotechnological Equipment Volume 37, 2023 - Issue 1
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Research Article

Lyophilized Escherichia coli strains stored for 40–50 years: morphological, serotypic, biochemical characteristics and drug sensitivity

Neli Ermenlievaa Department of Microbiology and Virology, Faculty of Medicine, Medical University Prof. Dr P. Stoyanov, Varna, BulgariaORCID Iconhttps://orcid.org/0000-0002-4713-5346View further author information
ORCID Icon,
Emilia Georgievab Training Sector "Medical Laboratory Assistant", Medical College-Varna, Medical University Prof. Dr P. Stoyanov, Varna, BulgariaORCID Iconhttps://orcid.org/0000-0003-2732-6839View further author information
ORCID Icon,
Gabriela Tsankovaa Department of Microbiology and Virology, Faculty of Medicine, Medical University Prof. Dr P. Stoyanov, Varna, BulgariaORCID Iconhttps://orcid.org/0000-0001-8146-5050View further author information
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Gergana Nedelchevaa Department of Microbiology and Virology, Faculty of Medicine, Medical University Prof. Dr P. Stoyanov, Varna, BulgariaORCID Iconhttps://orcid.org/0000-0003-1295-8884View further author information
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Krasimira Lalevac Department of Social Medicine and Health Care Organisation, Faculty of Public Health, Medical University Prof. Dr P. Stoyanov, Varna, BulgariaORCID Iconhttps://orcid.org/0000-0002-3391-1447View further author information
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Sylvia Stamovad Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Medical University Prof. Dr P. Stoyanov, Varna, BulgariaCorrespondence[email protected]
ORCID Iconhttps://orcid.org/0000-0003-2135-066XView further author information
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Todorka Kostadinovae Department of Economics and Health Care Management, Faculty of Public Health, Medical University Prof. Dr P. Stoyanov, Varna, BulgariaORCID Iconhttps://orcid.org/0000-0001-8812-4881View further author information
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Pages 309-316 | Received 25 Jan 2023, Accepted 10 Mar 2023, Published online: 22 Mar 2023

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