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Tilia Laboratories

Czech private molecular diagnostics laboratory specializing in veterinary and human molecular microbiology, molecular genetics, and genetic identification.

Last updated September 29, 2026

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Overview

Tilia Laboratories is a Czech private laboratory based in Pchery that performs molecular genetic testing in the fields of veterinary and human molecular microbiology, molecular genetics, and individual genetic identification. According to its official website, the laboratory identifies causative agents of infectious diseases in animals, humans, and overlapping zoonotic infections; searches for mutations associated with genetically conditioned syndromes and diseases in animals and humans; and carries out genetic identification of individuals using unique STR profiles. It also offers genetic analysis of food and provides an online ordering system and examination lists for clients. The laboratory is led by Soňa Peková, a physician and molecular biologist who became the public face of Tilia during the early stages of the COVID-19 pandemic in the Czech Republic. In March 2020, Tilia Laboratories detected two of the first cases of SARS-CoV-2 infection in the country outside the state testing system — the 6th and 13th reported cases — and developed a new type of test for the virus. The samples were subsequently confirmed by the National Reference Laboratory. This brought the laboratory into a public dispute with the Ministry of Health over certification and the right to test for COVID-19. The dispute centered on formal requirements imposed on private laboratories, including the ISO 15189 management system and a contract with a health insurance company, which Peková described as administratively burdensome and unnecessary for a private entity. The ministry initially restricted Tilia's testing activities, but after less than two weeks it relaxed the conditions, allowing the laboratory to be included in the system of certified laboratories. Tilia obtained certification for COVID-19 testing on 18 March 2020. Beyond the pandemic episode, Tilia Laboratories presents itself as a specialized molecular diagnostics provider serving veterinarians, breeders, clinics, zoological gardens, and human patients. Its website emphasizes the difference between classical culture-based microbiology and molecular microbiology, describing the latter as based on the precise reading of DNA sequences unique to each microbe. The laboratory also engages in educational activities, lectures, and projects, and maintains a network of partner veterinary workplaces and clinics.

History

Tilia Laboratories is a Czech private laboratory based in Pchery. It focuses on molecular genetic testing in veterinary and human molecular microbiology, molecular genetics, and individual genetic identification. The laboratory is led by Soňa Peková, a physician and molecular biologist who has been the head of the laboratory. The laboratory gained national attention in March 2020 during the early phase of the COVID-19 pandemic in the Czech Republic. On 6 and 13 March 2020, Tilia Laboratories detected two cases of SARS-CoV-2 infection outside the state testing system — the 6th and 13th reported cases in the country. The samples were subsequently confirmed by the National Reference Laboratory. In the first case, the infected woman had previously been refused testing by the state system. The Ministry of Health later acknowledged that the woman had acted correctly, but warned against testing in private laboratories. Deputy Minister of Health Roman Prymula stated that such private laboratories existed but the ministry did not know how many and had no tools to regulate their activities. On Friday 6 March 2020, Soňa Peková said that state authorities had imposed formal requirements on the laboratory that it could not fulfill, so it was not allowed to perform testing regardless of its expertise. Media reported that the minister required private laboratories to have the ISO 15189 system (ČSN EN ISO 15189), which Peková described as "a system of managerial work, in reality only increased administration," and which would take a year to obtain and cost half a million Czech korunas. A contract with an insurance company was also required, which Peková considered unnecessary for a private entity like Tilia. The laboratory sought an exemption from the ministry, but its activity was temporarily suspended and it had to turn away further applicants. On the same day, Minister of Health Adam Vojtěch stated at a press conference that Peková had to go into quarantine at Na Bulovka because she allegedly took a sample in a "very non-standard way." Chief Hygienist Eva Gottvaldová confirmed and elaborated on these claims. Later it emerged that both pieces of information were false: the laboratory did not collect samples itself, and the doctor was not in quarantine nor tested for the infection. Peková told Novinky.cz and Právo that the minister's statement was "grossly untrue information" and that she would like him not to spread "false information." On Saturday she apologized for "perhaps a somewhat exaggerated reaction to Minister Vojtěch's statement" and expressed hope that he would apologize to her as well. Politicians commented on the affair: MP Miroslav Kalousek said on Twitter that a health minister who demonstrably lies in a crisis situation discredits all information and measures; Markéta Pekarová Adamová, chair of TOP 09, linked the statement to an effort to damage private laboratories; Petr Fiala, chair of ODS, wrote that Minister Vojtěch should prescribe himself a media quarantine; KDU-ČSL chair Marian Jurečka said the minister needed rest; and deputy chair Jan Bartošek parodied the ANO movement. On Saturday 7 March 2020, Minister Vojtěch apologized several times for his untrue statements, saying he had received bad information from colleagues, had made a mistake, and regretted exposing the doctor to negative publicity, and that it was not a deliberate lie. Prime Minister Andrej Babiš added that the minister did not lie but that "a disinformation occurred," and that the minister and hygienist Gottvaldová had received the false information from an unnamed state official. Babiš urged the minister to name the source. During an afternoon meeting with journalists, he specified that the information should have been provided by "Dr. Macková" from the State Health Institute. MUDr. Barbora Macková, head of the Center for Epidemiology and Biology, was identified; Lidovky.cz sought her reaction. On 11 March 2020, Novinky.cz reported that Barbora Macková remained in her position and had continued working at the Ministry of Health on Monday 9 March. She did not respond to journalists' questions. According to Minister Vojtěch, Dr. Macková's personal evaluation was reduced for "misjudging the information," but otherwise she was doing very good work at the State Health Institute. The ministry relaxed the conditions for conducting tests to allow testing by research workplaces of the Academy of Sciences and veterinary institutes. Based on these adjusted conditions, Tilia Laboratories obtained certification for testing on 18 March 2020 in a short time. The laboratory continues to operate, offering molecular genetic testing in veterinary and human molecular microbiology, molecular genetics, and genetic identification, as well as genetic analysis of food.

  • Tilia Laboratories detects the 6th case of SARS-CoV-2 infection in the Czech Republic outside the state testing system.

  • Tilia Laboratories detects the 13th case of SARS-CoV-2 infection in the Czech Republic.

  • Head of laboratory Soňa Peková states that state authorities imposed formal requirements the laboratory cannot meet, effectively preventing testing.

  • Minister of Health Adam Vojtěch apologizes for untrue statements about the laboratory and its head.

  • Tilia Laboratories obtains certification for COVID-19 testing after the ministry relaxes conditions.

Products and positioning

Specialized private molecular diagnostics laboratory serving veterinary and human clients, emphasizing precision molecular methods over classical culture-based microbiology.

  • Molecular genetic testing for infectious disease agents

    Identification of causative agents of infectious diseases in animals, humans, and zoonotic infections.

  • Mutation screening

    Search for mutations associated with genetically conditioned syndromes and diseases in animals and humans.

  • STR-based genetic identification

    Genetic identification of individuals using unique STR profiles.

  • Genetic analysis of food

    Genetic analysis of food products.

  • COVID-19 testing

    New type of test for SARS-CoV-2 detection developed in March 2020.

Controversies

  • Dispute over COVID-19 testing authorization

  • False statements by Minister of Health

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