Research

Bernhard Nocht Institute celebrating 125 years of research

26 September 2025
New digital centre and new building in Science City Bahrenfeld and the "One Health" approach - Hamburg News spoke to Professor Jürgen May, CEO

The Bernhard Nocht Institute for Tropical Medicine (BNITM) is celebrating its 125th anniversary with a concert in the Elbphilharmonie, an international congress on global health and tropical medicine and a reception in City Hall. An anniversary exhibition in City hall illustrates the history of the institution and its latest research. Founded on October 1, 1900 as the "Institute for Ship and Tropical Diseases" by Bernhard Nocht, the BNITM is now a world leader in tropical and emerging infections research. Hamburg News spoke to Professor Jürgen May, Chair of BNITM,  about its history, the latest developments and visions for the future.

Hamburg News: Professor May, let's take a brief look at BNITM's history. How did it originate?

Prof. Jürgen May: "In the late 19th century, there were several cholera epidemics in Europe. The one in Hamburg in 1892 cost around 10,000 lives and the port had to be closed. That meant a red alert for the city, which at the time did not have an adequate healthcare system or a university as a research institution. Then, Bernhard Nocht, a student of Robert Koch, was appointed to fight the epidemic.

Hamburg or Berlin?

Hamburg News: But Robert Koch preferred to launch to the institute in Berlin, didn't he?

Prof Jürgen May: "That's right. But Hamburg fared well as a port city. London and Liverpool already had corresponding institutes and are port cities as well. The port was considered a gateway for infectious diseases from all over the world, which were spread by sailors. Located above the jetties, initially in the Seamen's Hospital, and in the Schumacher Building since 1914, the institute was perfectly positioned between the port and the Reeperbahn - the second most important source of infection."

Photo of Professor Jürgen May in a grey suit in front of a dark background.
Professor Jürgen May , CEO of the Bernhard Nocht Institute

Present field of research

Hamburg News: BNITM is a member of the Leibniz Association and co-operates with global institutes such as the World Health Organisation (WHO). Can you briefly outline your field of research?

Prof. Jürgen May: "It starts with basic research for which we have access to the world's best imaging techniques in the Centre for Structural Systems Biology (CSSB) in Science City Bahrefeld to investigate pathogens on an atomic level, and extends to implementation research. The question is why vaccines, medicines or other means of fighting disease sometimes fail and how we can change that.

Hamburg News: And how can that be changed?

Prof. Jürgen May: "We are exploring new research methods in e.g., medical anthropology, health communication and health economics to understand how limited resources can be used to enhance healthcare systems in the long-term. That applies not only to countries in the Global South, but also to countries in our own latitudes. Ultimately, global inequality poses a risk to everyone.

Close-up of an Asian tiger mosquito on a red, hairy object.
Asian tiger mosquito can transmit pathogens such as dengue, chikungunya, and West Nile viruses

Mosquito research now crucial

Hamburg News: Previously unknown vectors can now be found in our latitudes. How dangerous is, for instance, the tiger mosquito?

Prof. Jürgen May: "Many diseases are finding their way to us amid climate change and globalisation. In fact, mosquito research is a key field of research. Due to rising temperatures, mild winters and changing precipitation patterns, species that were previously only native to tropical and subtropical regions are increasingly being found in temperate zones. That includes the Asian tiger mosquito, which can transmit pathogens such as dengue, chikungunya and West Nile viruses."

Hamburg News: What research is being conducted at BNITM into this development?

Prof. Jürgen May: "Artificial intelligence (AI) uses pattern recognition to help identify mosquitoes faster. That involves analysing the wing pattern and the sound that mosquitoes make when flying. Genetic sequencing helps categorise the respective mosquito species. The mosquitoes and the pathogens are researched in our laboratories."

Scientist in protective suit examines sample in a lab
Research into organisms in the highest biological risk group including Ebola, Marburg, Crimean-Congo and Lassa viruses, is done in BNITM's high-security laboratories

"One Health" approach

Hamburg News: BNITM has BSL-4 (Biosafety Level 4) laboratories.

Prof. Jürgen May: "However, they are not used for research into dengue, chikungunya and West Nile viruses. The high-security laboratories are reserved for highly pathogenic pathogens such as Ebola, Marburg or Lassa viruses which are life-threatening and easily transmissible. We do not yet have any established therapies or vaccines for such diseases. BNITM also has several  mobile laboratories to react swiftly to outbreaks of serious infectious diseases. The institute is involved in further training in countries across the Global South on topics such as infection control, global health and One Health."

Hamburg News: What does "One Health" involve?

Prof. Jürgen May: "We can no longer think of health exclusively in terms of human beings. Given the backdrop of zoonoses, antimicrobial resistance and climate change, we must instead consider human, animal and environmental health together. The COVID-19 pandemic has shown us how closely the health of humans, animals and ecosystems is interlinked. On top of that, antibiotic resistance is now considered a silent epidemic. The causes lie in the use of antibiotics in factory farming and in the global spread of resistant pathogens through global travel and trade. We are also trying to counteract the loss of biodiversity by restricting the use of insecticides, but this in turn is bolstering the mosquito population. We consider such interactions in "One Health". As part of this approach, emphasis will be on "One Digital Health" in our new Data Science Centre.

"Data Science Centre"

Hamburg News: Will you be advancing digital infection research there?

Prof. Jürgen May: "Precisely. The centre was launched on September 1. Professor Thomas Otto is head of the Computational Infection Biology department. We have a wealth of data from infection research that we want to analyse using innovative bioinformatics methods. A second professorship is planned for "One Digital Health". By combining AI and bioinformatics, we aim to develop new digital diagnostic methods and improve epidemic prediction, including the spread of malaria. We hope that these new possibilities will lead to significant healthcare innovations in poorer countries.

Hamburg News: BNITM developed the standard test for diagnosing malaria. Is the disease still a problem?

Prof. Jürgen May: "Absolutely. Every year, 600,000 people still die from this infectious disease, especially children under the age of five. The BNITM has been involved in malaria research since it was founded. It is part of our Strategy 2030, which outlines our goals and visions for the next five years. They include combating local and global epidemics, deciphering the structures and interactions of pathogens and combating poverty-related and neglected (tropical) diseases. Unfortunately, that still brings us back to malaria even though research has made great progress."

Hamburg News: What else is on agenda in future?

Prof. Jürgen May: "We are planning a new building in Science City Bahrenfeld because we are literally bursting at the seams. Over the past five years, we have grown from 280 to more than 400 employees. However, the listed Schumacher building on Bernhard-Nocht-Straße will be retained and extensively renovated in the coming years."

Hamburg News: Thank you very much for the interesting interview!
ys/kk/pb

Interview by Yvonne Scheller

Sources and further information

Bernhard Nocht Institute for Tropical Medicine 

The Bernhard Nocht Institute for Tropical Medicine (BNITM) is Germany's leading institution for the research, treatment and education of tropical and emerging infectious diseases. The institute's focuses are malaria, haemorrhagic fever viruses, neglected tropical diseases, immunology and epidemiology. The institute has high-security laboratories (BSL-4) and a secure insectarium making it a global leader in handling of highly pathogenic pathogens. Research at BNITM unfolds in five sections, ranging from basic research to application: Pathogens (pathogen research); Interface (host-pathogen interactions and immunology); Patients (clinical research); Populations (epidemiology); and Implementation (implementation research). As a member of the Leibniz Association, BNITM combines basic research with clinical application and global co-operation.

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