Role of the Human Gut Virome in Human Health and Disease Ludwig-Maximilians-University Munich Laboratory of Viral metagenomics at the Rega Institute Germany


(ref. BAP-2019-179)


Last edited: 5/04/2019



The Laboratory of Viral metagenomics (part of the Laboratory of Clinical and Epidemiological Virology) at the Rega Institute is headed by Prof. dr. Jelle Matthijnssens, and role in the role of the human gut virome in human health and disease. For virome analyzes, we use a recently optimized method (NetoVIR) to efficiently investigate viromes in fecal samples. For the analyzes of bacteria and eukaryotes we use 16S and 18S approaches in collaboration with the lab of Prof. dr. Jeroen Raes (also in the Rega Institute). The Matthijnssens lab currently holds six PhD students and a lab technician. Our group is now looking for a dynamic and highly motivated new student to join our young and dynamic research team and to start a 4-year PhD project under the umbrella of the Doctoral School Biomedical Sciences ( / english / phd).


The PhD project will be executed in close collaboration with Dr. Mustafizur Rahman from the ICDDR, B (International Center for Diarrheaal Disease Research, Bangladesh), Prof. dr. Jeroen Raes (Bioinformatics and (eco-) systems biology lab), and senior PhD student Leen Beller, who has worked on similar data sets for Belgian infants (see below).


The KU Leuven is ranked in the top 20 of best Universities in Europe, and the Rega Institute is renowned worldwide for its research on viral immunology and antiviral therapies.

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The development of the intestinal microbiota is a key process in early life, as it significantly affects the metabolism and immune system of the host. Hence, the establishment of this symbiosis is crucial to achieve and maintain optimal health. The human gut microbiota is a complex ecosystem of bacteria, viruses, fungi and parasites, influenced by external factors such as diet and the environment. The overall interplay between these different components of the microbiome as well as their dynamics over time are poorly understood. Furthermore, the microbiome is increasingly being implicated in several complex human diseases, despite the lack of baseline knowledge on the "healthy" microbiome at multiple-kingdom levels and its recruitment early in life. As part of the PhD thesis or Leen Beller we have looked at the gut microbiota development or 8 Belgian (high-income country) infants during the first year of life. In the current project, fecal samples from a longitudinal cohort or 30 Bangladeshi infants (low income country) and their mothers are being sampled in collaboration with Dr. Mustafizur Rahman.

The Ph.D. candidate will:

Use several different wet lab metagenomics approaches (shotgun, 16S, 18S), based on Illumina NGS technology, to investigate viruses, bacteria, fungi and parasites in longitudinal infant stool samples.

Apply and optimize state-of-the-art bioinformatics analyzes to investigate individual components of the microbiota, as well as trans-kingdom interactions in the developing human gut microbiome.

Investigate longitudinal dynamics of the infant microbiota in relationship to environmental factors such as diet, disease, treatment, vaccination, etc.

Compare obtained microbiota data between Belgian and Bangladeshi infants.


You are passionate about scientific research!

You hold a Master of Science degree in Biomedical sciences, Bioengineering, Bioinformatics, Biochemistry, Biology and / or an adjacent field, or are expected to graduate before October 1st 2019.

You should have graduated with at least one degree of distinction (> 68%, KU Leuven eligibility criterion for starting a PhD), although preference will be given to candidates with higher grades.

Preferentially, you have experience with next-generation sequencing both in law lab (BSL2) as well as in silico. Knowledge of scripting languages (R, Python, Unix) is considered a strong plus. Candidates lacking law lab experience are also encouraged to apply but will be trained to work in the lab as well.

You can work independently as well as in an international team. Fluency in English is required.

You have strong analytical skills, an appropriate problem-solving attitude, you can approach complex issues in a systematic way, are a good planner and able to meet deadlines.


A doctoral position for 4 years. Funding for the project is available. However, the candidate is expected to apply for additional funding.

Work experience in a young, dynamic and internationally oriented research team.

Many training opportunities and access to state-of-the-art technologies and infrastructure

Competitive salary and benefits package

Starting date: 1st or October 2019


Do you think you are the right person for this challenging PhD project?




Apply online, and include:


Your motivation letter, explaining why you are the perfect candidate for this position.


Your Curriculum Vitae


Transcript of obtained grades


A list with at least two references (with name, function, email, address, phone number)



For more information please contact Prof. dr. Dr. Jelle Matthijnssens, tel .: +32 16 32 11 61, mail: or Mrs. Leen Beller, tel .: +32 16 32 12 85, mail:

You can apply for this job no later than June 30, 2019 via the online application tool

KU Leuven seeks to foster an environment where all talents can flourish, regardless of gender, age, cultural background, nationality or impairments. If you have any questions regarding accessibility or support, please contact us at



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